Microsoft Security Bulletin MS05-004 - Important

  • Article

ASP.NET Path Validation Vulnerability (887219)

Updated: October 09, 2007

Version: 4.0

Issued: February 8, 2005
Version: 4.0

Summary

Who should read this document: Customers who use Microsoft® Windows® .NET Framework

Impact of Vulnerability:  Information Disclosure, possible Elevation of Privilege

Maximum Severity Rating: Important

Recommendation: Customers should install the update at the earliest opportunity.

Security Update Replacement: None.

Caveats: Microsoft Knowledge Base Article 887219 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues. For more information, see Microsoft Knowledge Base Article 887219.

Tested Software and Security Update Download Locations:

Affected Software:

Microsoft .NET Framework 1.0

Microsoft .NET Framework 1.1

Non-Affected Software:

  • None

Affected Components:

  • ASP.NET

The software in this list has been tested to determine if the versions are affected. Other versions either no longer include security update support or may not be affected. To determine the support lifecycle for your product and version, visit the following Microsoft Support Lifecycle Web site.

General Information

Executive Summary

Executive Summary:

This update resolves a public vulnerability in ASP.NET that could allow an attacker to bypass the security of an ASP.NET Web site and gain unauthorized access. The vulnerability is documented in the Vulnerability Details section of this bulletin. An attacker who successfully exploited this vulnerability could gain unauthorized access to parts of a Web site. The actions that the attacker could take would depend on the specific content being protected.

Severity Ratings and Vulnerability Identifiers:

Vulnerability Identifiers Impact of Vulnerability .NET Framework 1.0 .NET Framework 1.1
Path Validation Vulnerability - CAN-2004-0847 Information Disclosure, Elevation of Privilege Important\ Important\

This assessment is based on the types of systems that are affected by the vulnerability, their typical deployment patterns, and the effect that exploiting the vulnerability would have on them.

Why did Microsoft reissue this bulletin on October 9, 2007?
Windows Server 2003 Service Pack 2 and Windows Vista have been added to the “Affected Software” sections for .NET Framework 1.0 Service Pack 3 KB886906 and .NET Framework 1.1 Service Pack 1 KB886903. Windows Update will now offer these updates to customers. Customers who have already installed the cumulative update MS07-040 will not need to apply MS05-004.

Why did Microsoft reissue this bulletin on August 8, 2006?
Subsequent to the release of this bulletin, it was determined that the vulnerability addressed also affects Microsoft Windows Server 2003 for Itanium-based Systems and Microsoft Windows Server 2003 x64 Edition for .NET Framework 1.1 Service Pack 1. Microsoft has updated the bulletin with additional information about Microsoft Windows Server 2003 for Itanium-based Systems and Microsoft Windows Server 2003 x64 Edition for .NET Framework 1.1 Service Pack 1 in the “Affected Software” section.

Why did Microsoft reissue this bulletin on June 14, 2005?
Subsequent to the release of this bulletin, it was determined that the update for .NET Framework 1.0 Service Pack 3 for the following operating system versions: Windows XP Tablet PC Edition and Windows XP Media Center Edition was failing to install when distributed through SMS or AutoUpdate. The updated package corrects this behavior**.**

If I already applied the original release of the update to my machine, do I need to install the re-released version of the update?
No, only customers that attempted distribution through SMS or used Automatic Update will need to apply the re-released version of the update for the following:

NET Framework 1.0 Service Pack 3 for the following operating system versions

  • Windows XP Tablet PC Edition
  • Windows XP Media Center Edition

Can I use the Microsoft Baseline Security Analyzer (MBSA) to determine if this update is required?
No. MBSA does not currently support the detection of .NET Framework. For detailed information about the programs that MBSA currently does not detect, see Microsoft Knowledge Base Article 306460.

However, Microsoft has made available an Enterprise Update Scanning Tool (EST) to assist customers with the detection of needed security updates not currently supported by MBSA.

What is the Enterprise Update Scanning Tool (EST)?
As part of an ongoing commitment to provide detection tools for bulletin-class security updates, Microsoft is delivering a stand-alone detection tool for all bulletins during a MSRC release cycle which cannot be detected by the Microsoft Baseline Security Analyzer (MBSA) or the Office Detection Tool (ODT). This standalone tool is referred to as an Enterprise Update Scanning Tool or EST and is designed for enterprise administrators. When a detection tool is created for a specific bulletin, customers will be able to run the tool from a command line interface (CLI), and view the results of the XML output file. In order to help customers better utilize the tool, detailed documentation will be provided with the tool. There is also a version of the tool that SMS customers can obtain that offers an integrated experience for SMS administrators.

Can I use a version of the Enterprise Update Scanning Tool (EST) to determine if this update is required?
Yes. Microsoft has created a version of the EST that will determine if you need to apply this update for all of the products listed under Affected Products above. Microsoft Knowledge Base Article 984193 describes the EST in detail, as well as provides a download link to the tool. There is also a version of this tool that SMS customers can obtain. See the following Microsoft Knowledge Base Article 894154.

Can I use Systems Management Server (SMS) to determine if this update is required?
Yes. SMS can help detect and deploy this security update. SMS uses MBSA for detection; therefore, SMS has the same limitation listed earlier in this bulletin related to programs that MBSA does not detect. However, there is a version of the EST that SMS customers can obtain that offers an integrated experience for SMS administrators. For information about SMS, visit the SMS Web site.

The Security Update Inventory Tool is required for detecting Microsoft Windows and other affected Microsoft products. For more information about the limitations of the Security Update Inventory Tool, see Microsoft Knowledge Base Article 306460

Vulnerability Details

Path Validation Vulnerability - CAN-2004-0847.

A canonicalization vulnerability exists in ASP.NET that could allow an attacker to bypass the security of an ASP.NET Web site and gain unauthorized access. An attacker who successfully exploited this vulnerability could take a variety of actions, depending on the specific contents of the website.

Mitigating Factors for Path Validation Vulnerability - CAN-2004-0847:

  • Vulnerability only affects sites that require authenticated access.

Workarounds for Path Validation Vulnerability - CAN-2004-0847:

Microsoft has tested the following workarounds. While these workarounds will not correct the underlying vulnerability, they help block known attack vectors. When a workaround reduces functionality, it is identified below.

  • Apply the mitigation code module discussed in Microsoft Knowledge Base article 887289. The mitigation code module provides protection on a server-basis.
  • An alternative to installing the module on a per application-basis is to make the following change to the global.asax file in the application root directory for each application on an affected system: <script runat=server language=cs>void Application_BeginRequest(object src, EventArgs e) { if (Request.Path.IndexOf('\\') >= 0 || System.IO.Path.GetFullPath(Request.PhysicalPath) != Request.PhysicalPath) { throw new HttpException(404, "not found"); }}</script>
  • Install and Use URLScan. URLScan will help protect against a large number of issues stemming from improperly formed URL requests including the publicly described issues addressed by this bulletin. URLScan does not protect your system as comprehensively as either the mitigation code module or the global.asax script below. Information on URLScan is available here https:.

FAQ for Path Validation Vulnerability - CAN-2004-0847:

What is the scope of the vulnerability?
This is an information disclosure vulnerability that could lead to an elevation privilege in some cases. An attacker who successfully exploited this vulnerability could bypass the security of an ASP.NET Web site and gain unauthorized access. An attacker who successfully exploited this vulnerability could take a variety of actions, depending on the specific contents of the Web site.

What causes the vulnerability?
The canonicalization routine that is used by ASP.NET to map the request does not correctly parse the URL.

What is ASP.NET?
ASP.NET is collection of technologies within the.NET Framework that enable developers to build Web applications and XML Web Services. Unlike traditional Web pages, which use a combination of static HTML and scripting, ASP.NET uses compiled, event-driven pages. This enables developers to build Web-based applications with the same richness and functionality usually associated with applications built in languages such as Visual Basic or Visual C++. Unlike desktop applications, however, these complied pages generate information that is sent to client desktops or browsers using markup languages such as HTML and XML. This enables developers to build applications with broad functionality, yet project a user interface to devices and systems running many operating systems. Because ASP.NET is a Web-based application environment, it requires an underlying Web server to provide basic HTTP functionality. For this reason, ASP.NET runs on top of IIS 5.0 on Windows 2000, IIS 5.1 on Windows XP and IIS 6.0 on Windows Server 2003.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could gain unauthorized access to parts of a Web site. The actions the attacker could take would depend on the specific content being protected.

Who could exploit the vulnerability?
Any anonymous user who could deliver a specially crafted URL to the affected system could attempt to exploit this vulnerability.

How could an attacker exploit the vulnerability?
An attacker could exploit the vulnerability by creating a specially crafted URL and sending the URL to an affected system, which could then allow the attacker to bypass the Web site’s security.

What systems are primarily at risk from the vulnerability?
Internet facing systems are primarily at risk from this vulnerability. In addition, internal Web sites that use ASP.NET to host sensitive data can be at risk from this vulnerability.

Could the vulnerability be exploited over the Internet?
Yes. An attacker may be able to exploit this vulnerability over the Internet.

I have already applied the ASP.NET ValidatePath Module (887290) listed in the workarounds section of the bulletin. Do I still need to apply this Security Update?
Yes. While the mitigation is effective, it is still important to apply the security update which removes the vulnerability.

Do I need to uninstall the ASP.NET ValidatePath Module (887290) before applying this update?
No. The module and security update can exist on a system at the same time, although this security update provides all of the benefits that the module does, so it is safe to remove the module once the update is installed.

What does the update do?
The update removes the vulnerability by modifying the way that ASP.NET validates url paths.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
Yes. This vulnerability has been publicly disclosed. It has been assigned Common Vulnerability and Exposure number CAN-2004-0847.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
Yes. When the security bulletin was released, Microsoft had received information that this vulnerability was being exploited.

Security Update Information

Installation Platforms and Prerequisites:

For information about the specific security update for your platform, click the appropriate link:

The Microsoft .NET Framework version 1.0 Service Pack 3

The Microsoft .NET Framework version 1.0 Service Pack 3 on Windows 2000 Service Pack 3 or Service Pack 4, or Windows XP Service Pack 1 or Service Pack 2, or Windows Server 2003 or Service Pack 2, or Windows Vista (886906)

Prerequisites This security update requires a released version of the .NET Framework 1.0 Service Pack 3 on Windows 2000 Service Pack 3 or Service Pack 4, or Windows XP Service Pack 1 or Service Pack 2, or Windows Server 2003.

Inclusion in Future Service Packs: The update for this issue is included in The Microsoft .NET Framework version 1.0 Service Pack 4.

Installation Information

This security update supports the following setup switches:

/? Show this information

/I Install (default action)

/u Uninstall (if installed)

/q Quiet mode

/l:logfile Generate log file

/ld Log package details

/lp Log affected products

/lf Log included files

/xp[:path] Extract MSP

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt:

<Filename> /q

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site.

Restart Requirement You must restart your system after you apply this security update.

Removal Information To remove this update, use the Add or Remove Programs tool in Control Panel.

File Information The English version of this update has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

The Microsoft .NET Framework version 1.0 Service Pack 3

File Name Version Date Time Size
System.web.dll 1.0.3705.6021 07-Oct-2004 20:28 1,200,128

Verifying Update Installation

  • File Version Verification

    Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

    Note Depending on the version of the operating system or programs installed, some of the files that are listed in the file information table may not be installed.

    1. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying the update installation. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

The Microsoft .NET Framework version 1.0 Service Pack 3 on Windows XP Tablet PC Edition or Windows XP Media Center Edition (887998)

Prerequisites This security update requires the Microsoft .NET Framework version 1.0 Service Pack 3 on Windows XP Tablet PC Edition or Windows XP Media Center Edition.

Inclusion in Future Service Packs: The update for this issue is included in The Microsoft .NET Framework version 1.0 Service Pack 4.

Installation Information

This security update supports the following setup switches:

/help                 Displays the command-line options

Setup Modes

/quiet            Quiet mode (no user interaction or display)

/passive            Unattended mode (progress bar only)

/uninstall          Uninstalls the package

Restart Options

/norestart          Do not restart when installation has completed

/forcerestart      Restart after installation

Special Options

/l                        Lists installed Windows hotfixes or update packages

/o                       Overwrite OEM files without prompting

/n                       Do not backup files needed for uninstall

/f                        Force other programs to close when the computer shuts down

/integrate:path  Integrates the update into the Windows source files located at the path specified.

/extract             Extracts files without starting the Setup program

Note You can combine these switches into one command. For backward compatibility, the security update also supports the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841. For more information about the Update.exe installer, visit the Microsoft TechNet Web site.

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt:

NDP1.0sp3-KB887998-X86-INTL-Ocm-Enu /passive /quiet

To install the security update without forcing the system to restart, use the following command at a command prompt:

NDP1.0sp3-KB887998-X86-INTL-Ocm-Enu /norestart

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site.

Restart Requirement You must restart your system after you apply this security update.

Removal Information To remove this update, use the Add or Remove Programs tool in Control Panel.

File Information The English version of this update has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

The Microsoft .NET Framework version 1.0 Service Pack 3

File Name Version Date Time Size
System.web.dll 1.0.3705.6021 07-Oct-2004 20:28 1,200,128

Verifying Update Installation

  • File Version Verification

    Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.
    5. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying the update installation. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

The Microsoft .NET Framework version 1.0 Service Pack 2

The .Microsoft NET Framework version 1.0 Service Pack 2 on Windows 2000 Service Pack 3 or Service Pack 4, or Windows XP Service Pack 1 or Service Pack 2, or Windows Server 2003 (886905)

Prerequisites This security update requires the released version of The Microsoft .NET Framework version 1.0 Service Pack 2 on Windows 2000 Service Pack 3 or Service Pack 4, or Windows XP Service Pack 1 or Service Pack 2, or Windows Server 2003.

Inclusion in Future Service Packs: The update for this issue is included in The Microsoft .NET Framework version 1.0 Service Pack 4.

Installation Information

This security update supports the following setup switches:

/? Show this information

/I Install (default action)

/u Uninstall (if installed)

/q Quiet mode

/l:logfile Generate log file

/ld Log package details

/lp Log affected products

/lf Log included files

/xp[:path] Extract MSP

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt:

<Filename> /q

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site.

Restart Requirement You must restart your system after you apply this security update.

Removal Information To remove this update, use the Add or Remove Programs tool in Control Panel.

File Information The English version of this update has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

The Microsoft .NET Framework version 1.0 Service Pack 2

File Name Version Date Time Size
Aspnet_isapi.dll 1.0.3705.556 18-Nov-2004 11:01 200,704
Aspnet_perf.h 18-Nov-2004 10:47 4,169
Aspnet_perf.ini 18-Nov-2004 11:02 513,302
Aspnet_perf2.ini 18-Nov-2004 11:02 510,714
Aspnet_regiis.exe 1.0.3705.556 18-Nov-2004 11:01 24,576
Aspnet_wp.exe 1.0.3705.556 18-Nov-2004 11:01 28,672
Corperfmonext.dll 1.0.3705.556 18-Nov-2004 07:38 69,632
Installpersistsqlstate.sql 29-Apr-2003 21:59 16,597
Installsqlstate.sql 29-Apr-2003 22:00 17,331
Installsqlstatetemplate.sql 12-Aug-2003 16:48 17,807
Mscorjit.dll 1.0.3705.556 18-Nov-2004 07:33 299,008
Mscorlib.dll 1.0.3705.556 19-Nov-2004 15:27 1,953,792
Mscorlib.ldo 18-Nov-2004 07:19 10,284
Mscorsvr.dll 1.0.3705.556 18-Nov-2004 07:34 2,207,744
Mscorwks.dll 1.0.3705.556 18-Nov-2004 07:35 2,273,280
Perfcounter.dll 1.0.3705.556 18-Nov-2004 10:55 20,480
Smartnav.htm 01-Aug-2002 20:38 15
Smartnav.js 29-Jul-2003 19:30 8,728
System.data.dll 1.0.3705.556 19-Nov-2004 15:27 1,179,648
System.design.dll 1.0.3705.556 19-Nov-2004 15:27 1,695,744
System.dll 1.0.3705.556 19-Nov-2004 15:27 1,175,552
System.messaging.dll 1.0.3705.556 19-Nov-2004 15:27 241,664
System.runtime.remoting.dll 1.0.3705.556 19-Nov-2004 15:27 311,296
System.runtime.serialization.formatters.soap.dll 1.0.3705.556 19-Nov-2004 15:27 131,072
System.web.dll 1.0.3705.556 19-Nov-2004 15:27 1,200,128
System.web.services.dll 1.0.3705.556 19-Nov-2004 15:27 507,904
System.windows.forms.dll 1.0.3705.556 19-Nov-2004 15:27 1,994,752
System.windows.forms.ldo 18-Nov-2004 11:15 16,804
System.windows.forms.tlb 1.0.3705.556 18-Nov-2004 11:05 57,344
System.xml.dll 1.0.3705.556 19-Nov-2004 15:27 1,302,528
Tlbimp.exe 1.0.3705.556 19-Nov-2004 15:27 32,768
Uninstallpersistsqlstate.sql 08-Jan-2002 19:13 1,419
Uninstallsqlstatetemplate.sql 12-Aug-2003 16:48 2,119
Wsdl.exe 1.0.3705.556 19-Nov-2004 15:27 65,536

Verifying Update Installation

  • File Version Verification

    Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

    Note Depending on the version of the operating system or programs installed, some of the files that are listed in the file information table may not be installed.

    1. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying the update installation. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

The Microsoft .NET Framework version 1.0 Service Pack 2 on Windows XP Tablet PC Edition or Windows XP Media Center Edition (887999)

Prerequisites This security update requires the Microsoft .NET Framework version 1.0 Service Pack 2 on Windows XP Tablet PC Edition or Windows XP Media Center Edition.

Inclusion in Future Service Packs: The update for this issue is included in The Microsoft .NET Framework version 1.0 Service Pack 4.

Installation Information

This security update supports the following setup switches:

/help                 Displays the command-line options

Setup Modes

/quiet            Quiet mode (no user interaction or display)

/passive            Unattended mode (progress bar only)

/uninstall          Uninstalls the package

Restart Options

/norestart          Do not restart when installation has completed

/forcerestart      Restart after installation

Special Options

/l                        Lists installed Windows hotfixes or update packages

/o                       Overwrite OEM files without prompting

/n                       Do not backup files needed for uninstall

/f                        Force other programs to close when the computer shuts down

/integrate:path  Integrates the update into the Windows source files located at the path specified.

/extract             Extracts files without starting the Setup program

Note You can combine these switches into one command. For backward compatibility, the security update also supports the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841. For more information about the Update.exe installer, visit the Microsoft TechNet Web site.

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt:

NDP1.0sp2-KB887999-X86-Ocm-Enu /passive /quiet

To install the security update without forcing the system to restart, use the following command at a command prompt:

NDP1.0sp2-KB887999-X86-Ocm-Enu /norestart

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site.

Restart Requirement You must restart your system after you apply this security update.

Removal Information To remove this update, use the Add or Remove Programs tool in Control Panel.

File Information The English version of this update has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

The Microsoft .NET Framework version 1.0 Service Pack 2

File Name Version Date Time Size Folder
Aspnet_isapi.dll 1.0.3705.556 18-Nov-2004 11:01 200,704
Aspnet_perf.h 18-Nov-2004 10:47 4,169
Aspnet_perf.ini 18-Nov-2004 11:02 513,302
Aspnet_perf2.ini 18-Nov-2004 11:02 510,714
Aspnet_regiis.exe 1.0.3705.556 18-Nov-2004 11:01 24,576
Aspnet_wp.exe 1.0.3705.556 18-Nov-2004 11:01 28,672
Corperfmonext.dll 1.0.3705.556 18-Nov-2004 07:38 69,632
Gacutil.exe 1.0.3705.0 30-Sep-2004 02:04 61,440
Installpersistsqlstate.sql 29-Apr-2003 22:59 16,597
Installsqlstate.sql 29-Apr-2003 23:00 17,331
Installsqlstatetemplate.sql 12-Aug-2003 17:48 17,807
Mscorjit.dll 1.0.3705.556 18-Nov-2004 07:33 299,008
Mscorlib.dll 1.0.3705.556 19-Nov-2004 15:27 1,953,792
Mscorlib.ldo 18-Nov-2004 07:19 10,284
Mscorsvr.dll 1.0.3705.556 18-Nov-2004 07:34 2,207,744
Mscorwks.dll 1.0.3705.556 18-Nov-2004 07:35 2,273,280
Netfxupdate.exe 1.0.3705.1 30-Sep-2004 02:11 106,496
Perfcounter.dll 1.0.3705.556 18-Nov-2004 10:55 20,480
Setregni.exe 1.1.4322.2033 08-Oct-2004 01:36 102,400
System.data.dll 1.0.3705.556 19-Nov-2004 15:27 1,179,648
System.design.dll 1.0.3705.556 19-Nov-2004 15:27 1,695,744
System.dll 1.0.3705.556 19-Nov-2004 15:27 1,175,552
System.messaging.dll 1.0.3705.556 19-Nov-2004 15:27 241,664
System.runtime.remoting.dll 1.0.3705.556 19-Nov-2004 15:27 311,296
System.runtime.serialization.formatters.soap.dll 1.0.3705.556 19-Nov-2004 15:27 131,072
System.web.dll 1.0.3705.556 19-Nov-2004 15:27 1,200,128
System.web.services.dll 1.0.3705.556 19-Nov-2004 15:27 507,904
System.windows.forms.dll 1.0.3705.556 19-Nov-2004 15:27 1,994,752
System.windows.forms.ldo 18-Nov-2004 11:15 16,804
System.windows.forms.tlb 1.0.3705.556 18-Nov-2004 11:05 57,344
System.xml.dll 1.0.3705.556 19-Nov-2004 15:27 1,302,528
Togac.exe 1.1.4322.573 30-Sep-2004 02:11 118,784
Uninstallpersistsqlstate.sql 08-Jan-2002 19:13 1,419
Uninstallsqlstate.sql 07-Nov-2001 23:02 2,001
Uninstallsqlstatetemplate.sql 12-Aug-2003 17:48 2,119
Smartnav.htm 01-Aug-2002 21:38 15 ASP.NETCLIENTFILES
Smartnav.js 29-Jul-2003 20:30 8,728 ASP.NETCLIENTFILES
Smartnavie5.js 28-Jan-2002 18:13 7,003 ASP.NETCLIENTFILES
System.data.resources.dll 1.0.3705.556 19-Nov-2004 17:03 122,880
System.design.resources.dll 1.0.3705.556 19-Nov-2004 17:03 192,512
System.resources.dll 1.0.3705.556 19-Nov-2004 17:03 81,920
System.runtime.remoting.resources.dll 1.0.3705.556 19-Nov-2004 17:02 16,384
System.windows.forms.resources.dll 1.0.3705.556 19-Nov-2004 17:03 188,416
System.xml.resources.dll 1.0.3705.556 19-Nov-2004 17:02 106,496
System.data.resources.dll 1.0.3705.556 19-Nov-2004 17:03 118,784
System.design.resources.dll 1.0.3705.556 19-Nov-2004 17:03 139,264
System.resources.dll 1.0.3705.556 19-Nov-2004 17:03 81,920
System.runtime.remoting.resources.dll 1.0.3705.556 19-Nov-2004 17:03 16,384
System.windows.forms.resources.dll 1.0.3705.556 19-Nov-2004 17:03 176,128
System.xml.resources.dll 1.0.3705.556 19-Nov-2004 17:03 106,496
System.data.resources.dll 1.0.3705.556 19-Nov-2004 17:03 122,880
System.design.resources.dll 1.0.3705.556 19-Nov-2004 17:03 155,648
System.resources.dll 1.0.3705.556 19-Nov-2004 17:03 81,920
System.runtime.remoting.resources.dll 1.0.3705.556 19-Nov-2004 17:03 16,384
System.windows.forms.resources.dll 1.0.3705.556 19-Nov-2004 17:02 188,416
System.xml.resources.dll 1.0.3705.556 19-Nov-2004 17:03 106,496
System.data.resources.dll 1.0.3705.556 19-Nov-2004 17:03 118,784
System.design.resources.dll 1.0.3705.556 19-Nov-2004 17:03 212,992
System.resources.dll 1.0.3705.556 19-Nov-2004 17:03 81,920
System.runtime.remoting.resources.dll 1.0.3705.556 19-Nov-2004 17:03 16,384
System.windows.forms.resources.dll 1.0.3705.556 19-Nov-2004 17:03 188,416
System.xml.resources.dll 1.0.3705.556 19-Nov-2004 17:03 106,496
System.data.resources.dll 1.0.3705.556 19-Nov-2004 17:02 131,072
System.design.resources.dll 1.0.3705.556 19-Nov-2004 17:03 147,456
System.resources.dll 1.0.3705.556 19-Nov-2004 17:02 90,112
System.runtime.remoting.resources.dll 1.0.3705.556 19-Nov-2004 17:03 28,672
System.windows.forms.resources.dll 1.0.3705.556 19-Nov-2004 17:03 196,608
System.xml.resources.dll 1.0.3705.556 19-Nov-2004 17:03 118,784
System.data.resources.dll 1.0.3705.556 19-Nov-2004 17:03 126,976
System.design.resources.dll 1.0.3705.556 19-Nov-2004 17:03 167,936
System.resources.dll 1.0.3705.556 19-Nov-2004 17:03 86,016
System.runtime.remoting.resources.dll 1.0.3705.556 19-Nov-2004 17:03 28,672
System.windows.forms.resources.dll 1.0.3705.556 19-Nov-2004 17:03 180,224
System.xml.resources.dll 1.0.3705.556 19-Nov-2004 17:03 110,592
System.data.resources.dll 1.0.3705.556 19-Nov-2004 17:03 106,496
System.design.resources.dll 1.0.3705.556 19-Nov-2004 17:02 212,992
System.resources.dll 1.0.3705.556 19-Nov-2004 17:03 69,632
System.runtime.remoting.resources.dll 1.0.3705.556 19-Nov-2004 17:03 15,360
System.windows.forms.resources.dll 1.0.3705.556 19-Nov-2004 17:03 163,840
System.xml.resources.dll 1.0.3705.556 19-Nov-2004 17:03 98,304
System.data.resources.dll 1.0.3705.556 19-Nov-2004 17:03 110,592
System.design.resources.dll 1.0.3705.556 19-Nov-2004 17:03 147,456
System.resources.dll 1.0.3705.556 19-Nov-2004 17:03 73,728
System.runtime.remoting.resources.dll 1.0.3705.556 19-Nov-2004 17:02 15,360
System.windows.forms.resources.dll 1.0.3705.556 19-Nov-2004 17:03 159,744
System.xml.resources.dll 1.0.3705.556 19-Nov-2004 17:03 98,304

Verifying Update Installation

  • File Version Verification

    Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.
    5. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying the update installation. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

The Microsoft .NET Framework version 1.1 Service Pack 1

The .Microsoft NET Framework version 1.1 Service Pack 1 on Windows 2000 Service Pack 3 or Service Pack 4, or Windows XP Service Pack 1 or Service Pack 2, or Windows XP Professional x64 Edition, or Windows XP Tablet PC Edition or Windows XP Media Center Edition, or Windows Server 2003 Service Pack 2, or Windows Vista (886903)

Prerequisites This security update requires the released version of The Microsoft .NET Framework version 1.1 Service Pack 1 on Windows 2000 Service Pack 3 or Service Pack 4, or Windows XP Service Pack 1 or Service Pack 2, or Windows XP Professional x64 Edition, or Windows XP Tablet PC Edition or Windows XP Media Center Edition.

Inclusion in Future Service Packs: The update for this issue is included in The Microsoft .NET Framework version 1.1 Service Pack 2.

Installation Information

This security update supports the following setup switches:

/? Show this information

/I Install (default action)

/u Uninstall (if installed)

/q Quiet mode

/l:logfile Generate log file

/ld Log package details

/lp Log affected products

/lf Log included files

/xp[:path] Extract MSP

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt:

<Filename> /q

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site.

Restart Requirement You must restart your system after you apply this security update.

Removal Information To remove this update, use the Add or Remove Programs tool in Control Panel.

File Information The English version of this update has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

The Microsoft .NET Framework version 1.1 Service Pack 1

File Name Version Date Time Size
System.web.dll 1.1.4322.2037 08-Oct-2004 13:20 1,257,472

Verifying Update Installation

  • File Version Verification

    Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

    Note Depending on the version of the operating system or programs installed, some of the files that are listed in the file information table may not be installed.

    1. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying the update installation. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

The Microsoft .NET Framework version 1.1 Service Pack 1 on Windows Server 2003, Microsoft Windows Server 2003 for Itanium-based Systems, Microsoft Windows Server 2003 with SP2 for Itanium-based Systems, Microsoft Windows Server 2003 x64, and Microsoft Windows Server 2003 x64 Service Pack 2 (886903)

Prerequisites This security update requires the Microsoft .NET Framework version 1.1 Service Pack 1 on Windows Server 2003

Inclusion in Future Service Packs: The update for this issue is included in The Microsoft .NET Framework version 1.1 Service Pack 2 and Windows Server 2003 Service Pack 1.

Installation Information

This security update supports the following setup switches:

/help                 Displays the command-line options

Setup Modes

/quiet            Quiet mode (no user interaction or display)

/passive            Unattended mode (progress bar only)

/uninstall          Uninstalls the package

Restart Options

/norestart          Do not restart when installation has completed

/forcerestart      Restart after installation

Special Options

/l                        Lists installed Windows hotfixes or update packages

/o                       Overwrite OEM files without prompting

/n                       Do not backup files needed for uninstall

/f                        Force other programs to close when the computer shuts down

/integrate:path  Integrates the update into the Windows source files located at the path specified.

/extract             Extracts files without starting the Setup program

Note You can combine these switches into one command. For backward compatibility, the security update also supports the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841. For more information about the Update.exe installer, visit the Microsoft TechNet Web site.

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt:

WindowsServer2003-KB886903-x86-ENU /passive /quiet

To install the security update without forcing the system to restart, use the following command at a command prompt:

WindowsServer2003-KB886903-x86-ENU /norestart

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site.

Restart Requirement You must restart your system after you apply this security update.

Removal Information To remove this update, use the Add or Remove Programs tool in Control Panel.

File Information The English version of this update has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

The Microsoft .NET Framework version 1.1 Service Pack 1

File Name Version Date Time Size
System.web.dll 1.1.4322.2037 19-Oct-2004 15:53 1,257,472

Verifying Update Installation

  • File Version Verification

    Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.
    5. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying the update installation. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

The Microsoft .NET Framework version 1.1

The .Microsoft NET Framework version 1.1 on Windows 2000 Service Pack 3 or Service Pack 4, or Windows XP Service Pack 1 or Service Pack 2, or Windows XP Tablet PC Edition or Windows XP Media Center Edition (886904)

Prerequisites This security update requires the released version of The Microsoft .NET Framework version 1.1 on Windows 2000 Service Pack 3 or Service Pack 4, or Windows XP Service Pack 1 or Service Pack 2, or Windows XP Tablet PC Edition or Windows XP Media Center Edition.

Inclusion in Future Service Packs: The update for this issue is included in The Microsoft .NET Framework version 1.1 Service Pack 2.

Installation Information

This security update supports the following setup switches:

/? Show this information

/I Install (default action)

/u Uninstall (if installed)

/q Quiet mode

/l:logfile Generate log file

/ld Log package details

/lp Log affected products

/lf Log included files

/xp[:path] Extract MSP

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt:

<Filename> /q

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site.

Restart Requirement You must restart your system after you apply this security update.

Removal Information To remove this update, use the Add or Remove Programs tool in Control Panel.

File Information The English version of this update has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

The Microsoft .NET Framework version 1.1 Service Pack 1

File Name Version Date Time Size
Aspnet_isapi.dll 1.1.4322.1085 23-Oct-2004 09:16 258,048
Aspnet_regiis.exe 1.1.4322.1085 23-Oct-2004 09:16 20,480
Aspnet_state.exe 1.1.4322.1085 23-Oct-2004 09:16 32,768
Aspnet_wp.exe 1.1.4322.1085 23-Oct-2004 09:16 32,768
Installpersistsqlstate.sql 05-Apr-2004 21:39 33,718
Installsqlstate.sql 05-Apr-2004 21:39 34,342
Installsqlstatetemplate.sql 05-Apr-2004 21:39 35,243
Perfcounter.dll 1.1.4322.1085 23-Oct-2004 09:06 94,208
Smartnav.js 23-Oct-2004 09:11 9,427
System.dll 1.1.4322.1085 26-Oct-2004 07:11 1,224,704
System.messaging.dll 1.1.4322.1085 26-Oct-2004 07:12 241,664
System.runtime.remoting.dll 1.1.4322.1085 26-Oct-2004 07:10 323,584
System.runtime.serialization.formatters.soap.dll 1.1.4322.1085 26-Oct-2004 07:11 131,072
System.web.dll 1.1.4322.1085 26-Oct-2004 07:12 1,257,472
System.web.mobile.dll 1.1.4322.1085 26-Oct-2004 07:10 819,200
System.web.services.dll 1.1.4322.1085 26-Oct-2004 07:10 569,344
System.xml.dll 1.1.4322.1085 26-Oct-2004 07:11 1,351,680
Uninstallsqlstatetemplate.sql 03-Oct-2003 20:20 2,119
Webuivalidation.js 23-Oct-2004 09:11 14,482

Verifying Update Installation

  • File Version Verification

    Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

    Note Depending on the version of the operating system or programs installed, some of the files that are listed in the file information table may not be installed.

    1. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying the update installation. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

The Microsoft .NET Framework version 1.1 on Windows Server 2003 (886904)

Prerequisites This security update requires the Microsoft .NET Framework version 1.1 on Windows Server 2003

Inclusion in Future Service Packs: The update for this issue will be included in The Microsoft .NET Framework version 1.1 Service Pack 2 and Windows Server 2003 Service Pack 1.

Installation Information

This security update supports the following setup switches:

/help                 Displays the command-line options

Setup Modes

/quiet            Quiet mode (no user interaction or display)

/passive            Unattended mode (progress bar only)

/uninstall          Uninstalls the package

Restart Options

/norestart          Do not restart when installation has completed

/forcerestart      Restart after installation

Special Options

/l                        Lists installed Windows hotfixes or update packages

/o                       Overwrite OEM files without prompting

/n                       Do not backup files needed for uninstall

/f                        Force other programs to close when the computer shuts down

/integrate:path  Integrates the update into the Windows source files located at the path specified.

/extract             Extracts files without starting the Setup program

Note You can combine these switches into one command. For backward compatibility, the security update also supports the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841. For more information about the Update.exe installer, visit the Microsoft TechNet Web site.

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt:

WindowsServer2003-KB886904-x86-enu /passive /quiet

To install the security update without forcing the system to restart, use the following command at a command prompt:

WindowsServer2003-KB886904-x86-enu /norestart

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site.

Restart Requirement You must restart your system after you apply this security update.

Removal Information To remove this update, use the Add or Remove Programs tool in Control Panel.

File Information The English version of this update has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

The Microsoft .NET Framework version 1.on Windows Server 2003

File Name Version Date Time Size
Aspnet_isapi.dll 1.1.4322.1085 28-Oct-2004 12:54 258,048
Aspnet_regiis.exe 1.1.4322.1085 28-Oct-2004 12:54 20,480
Aspnet_state.exe 1.1.4322.1085 28-Oct-2004 12:54 32,768
Aspnet_wp.exe 1.1.4322.1085 28-Oct-2004 12:54 32,768
Installpersistsqlstate.sql 19-Aug-2004 21:21 33,718
Installsqlstate.sql 19-Aug-2004 21:21 34,342
Installsqlstatetemplate.sql 16-Oct-2004 01:03 35,243
Netfxupdate.exe 1.0.3705.0 19-Sep-2004 04:40 106,496
Perfcounter.dll 1.1.4322.1085 28-Oct-2004 12:54 94,208
Setregni.exe 1.1.4322.2033 13-Oct-2004 02:19 102,400
Smartnav.js 19-Aug-2004 21:21 9,427
Sy52106.dll 1.1.4322.1085 28-Oct-2004 12:53 1,224,704
System.messaging.dll 1.1.4322.1085 28-Oct-2004 12:53 241,664
System.runtime.remoting.dll 1.1.4322.1085 28-Oct-2004 12:53 323,584
System.runtime.serialization.formatters.soap.dll 1.1.4322.1085 28-Oct-2004 12:53 131,072
System.web.dll 1.1.4322.1085 28-Oct-2004 13:53 1,257,472
System.web.mobile.dll 1.1.4322.1085 28-Oct-2004 12:53 819,200
System.web.services.dll 1.1.4322.1085 28-Oct-2004 12:53 569,344
System.xml.dll 1.1.4322.1085 28-Oct-2004 12:53 1,351,680
Togac.exe 1.1.4322.573 19-Sep-2004 04:41 118,784
Uninstallsqlstatetemplate.sql 01-Jul-2004 16:03 2,119
Webuivalidation.js 02-Jul-2004 01:05 14,482

Verifying Update Installation

  • File Version Verification

    Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.
    5. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying the update installation. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

Other Information

Obtaining Other Security Updates:

Updates for other security issues are available from the following locations:

Support:

  • Customers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.
  • International customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site.

Security Resources:

Software Update Services:

By using Microsoft Software Update Services (SUS), administrators can quickly and reliably deploy the latest critical updates and security updates to Windows 2000 and Windows Server 2003-based servers, and to desktop systems that are running Windows 2000 Professional or Windows XP Professional.

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site.

Systems Management Server:

Microsoft Systems Management Server (SMS) delivers a highly-configurable enterprise solution for managing updates. By using SMS, administrators can identify Windows-based systems that require security updates and to perform controlled deployment of these updates throughout the enterprise with minimal disruption to end users. For more information about how administrators can use SMS 2003 to deploy security updates, see the SMS 2003 Security Patch Management Web site. SMS 2.0 users can also use Software Updates Service Feature Pack to help deploy security updates. For information about SMS, visit the SMS Web site.

Note SMS uses the Microsoft Baseline Security Analyzer and the Microsoft Office Detection Tool to provide broad support for security bulletin update detection and deployment. Some software updates may not be detected by these tools. Administrators can use the inventory capabilities of the SMS in these cases to target updates to specific systems. For more information about this procedure, see the following Web site. Some security updates require administrative rights following a restart of the system. Administrators can use the Elevated Rights Deployment Tool (available in the SMS 2003 Administration Feature Pack and in the SMS 2.0 Administration Feature Pack) to install these updates.

Disclaimer:

The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

Revisions:

  • V1.0 (February 8, 2005): Bulletin published
  • V1.1 (February 15, 2005): Bulletin updated to include Knowledge Base Article numbers for each individual download under Affected Products.
  • V1.2 (March 16, 2005): Bulletin “Caveats” section has been updated to document known issues that customers may experience when installing the available security updates.
  • V2.0 (June 14, 2005): Bulletin updated to announce the availability of an updated package for .NET Framework 1.0 Service Pack 3 for the following operating system versions: (887998) Windows XP Tablet PC Edition and Windows XP Media Center Edition.
  • V3.0 (August 8, 2006): Bulletin updated to reflect the addition of Microsoft Windows Server 2003 for Itanium-based Systems and Microsoft Windows Server 2003 x64 Edition for .NET Framework 1.1 Service Pack 1 under “Affected Software” for “Microsoft .NET Framework 1.1”.
  • V4.0 (October 9, 2007): Bulletin updated as Windows Server 2003 Service Pack 2 and Windows Vista have been added to the “Affected Software” sections for .NET Framework 1.0 Service Pack 3 KB886906 and .NET Framework 1.1 Service Pack 1 KB886903.

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