IIS 6.0 Content Revision Summary

Article
10/08/2009

Applies To: Windows Server 2003 R2, Windows Server 2003 with SP1

This topic summarizes the changes made to the content in the IIS 6.0 Deployment Guide, the IIS 6.0 Operations Guide, and the IIS 6.0 Technical Reference since the original release of the documentation.

The table below gives a description of the area that each change affects.

Area	Description
Application Configuration	Provides information about changes made to IIS 6.0 content about configuring applications.
Architecture	Provides information about changes made to IIS 6.0 content about IIS architecture.
Error Messages	Provides information about changes made to IIS 6.0 content about error messages.
Installation	Provides information about changes made to IIS 6.0 content about installation of IIS.
Introduction/Overview	Provides information about changes made to introductory content about IIS 6.0.
Logging	Provides information about changes made to IIS 6.0 content about logging.
Performance	Provides information about changes made to IIS 6.0 content about performance and scalability.
Reference	Provides information about changes made to IIS 6.0 reference content, such as metabase properties, registry entries, etc.
Security	Provides information about changes made to IIS 6.0 content about security.
Server Administration	Provides information about changes made to IIS 6.0 content about administering an IIS server.
Site Administration	Provides information about changes made to IIS 6.0 content about Web sites, Web directories, File Transfer Protocol (FTP) sites, Network News Transfer Protocol (NNTP) sites, and Simple Mail Transfer Protocol (SMTP) sites.
Troubleshooting	Provides information about changes made to IIS 6.0 troubleshooting content.
Web Applications	Provides information about changes made to IIS 6.0 content about Web applications.

Application Configuration

Content Type	Topic	Description
IIS 6.0 Deployment Guide	Appendix D: Running 32-bit Applications on 64-bit Windows	Added new appendix with information about using the WOW64 emulator to run 32-bit Web applications on 64-bit Windows.
IIS 6.0 Operations Guide	Configuring IIS to Run 32-bit Applications on 64-bit Windows and subordinate topics	Added new topic about configuring IIS to run 32-bit Web applications on 64-bit Windows.
IIS 6.0 Operations Guide	Configuring the Maximum Number of Concurrent CGI Requests	Added topic with information about configuring the maximum number of Common Gateway Interface (CGI) requests allowed to run at one time by setting the MaxConcurrentCgisExecuting registry key.
IIS 6.0 Operations Guide	Configuring CGI Application Timeouts	Added topic with information about configuring CGI application time-out values.
IIS 6.0 Operations Guide	Configuring ASP.NET Applications in Worker Process Isolation Mode	Updated which processModel settings still apply in worker process isolation mode.
IIS 6.0 Operations Guide	Configuring Applications to Use COM+ Services	Clarified that some configurations of launch permissions may prohibit COM+ objects from being created, which may affect the running of the app/extension/etc. in which the object resides.
IIS 6.0 Operations Guide	Configuring Applications to Use COM+ Services	Corrected list of Windows Components that support Side-by-Side assemblies.
IIS 6.0 Operations Guide	Configuring Applications to Use COM+ Services	Added note that batch Logon is required for COM+ server-activated application identities.
IIS 6.0 Operations Guide	Installing ISAPI Filters	Added notes for the following issues: In IIS 6.0, an Internet Server API (ISAPI) filter added at the site level will not load until the Web server has served at least one request to that site, so the filter's status won't display anything until that time. At the Web site level, you will not see any global filters inherited from the Web server's master properties.
IIS 6.0 Operations Guide	Recycling Worker Processes with IIS 6.0 and subordinate topics	Added information about worker process recycling including how it works, when to use it, how to configure it, and logging the recycling events.

Architecture

Content Type	Topic	Description
IIS 6.0 Technical Reference	Evaluating Application Isolation Modes	Added information about how SF_NOTIFY_READ_RAW_DATA notifications work depending on the application mode in which the server is running.
IIS 6.0 Technical Reference	HTTP Protocol Stack	Added a note about improvements made to HTTP.sys for Windows Server 2003 SP1 and a link to the HTTP API in Windows Server 2003 SP1 white paper.

Error Messages

Content Type	Topic	Description
IIS 6.0 Operations Guide	Configuring Custom Error Messages	Added note that the following errors are not customizable: 400, 403.9, 411, 414, 500, 500.11, 500.14, 500.15, 501, 503, 505.
IIS 6.0 Operations Guide	Error Messages in IIS 6.0	Added note that HTTP.sys does not serve custom errors, so standard HTTP 1.1 error messages will be returned to the browser if a request does not reach user mode.

Installation

Content Type	Topic	Description
IIS 6.0 Operations Guide	Installing IIS	Added link to information about answer files and unattended setup parameters in the IIS 6.0 Technical Reference.
IIS 6.0 Technical Reference	Creating an Answer File	Documented the following unattended setup parameters: InetPrint SvcManualStart ExtensionFile

IIS 6.0 Operations Guide

Installing IIS

Added link to information about answer files and unattended setup parameters in the IIS 6.0 Technical Reference.

IIS 6.0 Technical Reference

Creating an Answer File

Documented the following unattended setup parameters:

InetPrint
SvcManualStart
ExtensionFile

Introduction/Overview

Content Type	Topic	Description
IIS 6.0 Deployment Guide	IIS 6.0 Benefits and Features	Added information about HTTP compression.
IIS 6.0 Deployment Guide	Appendix C: Choosing a Cluster Technology for IIS 6.0 and subordinate topics	Added topics with information about the different clustering technologies available for IIS 6.0, and included links for additional information.
IIS 6.0 Operations Guide	What's Changed	Clarified the meaning of "extension" in the context of the Known Extensions feature of IIS 6.0, and added information about how to lock down DLLs, executables, and file name extensions.
IIS 6.0 Operations Guide	What's Changed Does ASP debugging work in IIS 6.0 worker process isolation mode? Important Changes in ASP	Added information about configuring Launch and Access permissions to enable ASP debugging for Script Debugger and Visual InterDev when using IIS 6.0 Worker Process Isolation mode.

Logging

Content Type	Topic	Description
IIS 6.0 Operations Guide	Enabling W3C Centralized Logging	Added topic describing how to enable W3C centralized logging.
IIS 6.0 Operations Guide	Auditing the Metabase	Added new topic with information about auditing in the IIS metabase.
IIS 6.0 Operations Guide	Auditing in IIS 6.0	Added link to information about disabling auditing of successful logons in the security event log.
IIS 6.0 Technical Reference	W3C Centralized Logging	Added topic about the new W3C centralized logging feature.
IIS 6.0 Technical Reference	Metabase Auditing	Added new topic with information about auditing in the IIS metabase.

Performance and Scalability

Content Type	Topic	Description
IIS 6.0 Deployment Guide	Enabling HTTP Compression IIS 6.0 Configure Compression	Added topics with information about HTTP compression.
IIS 6.0 Operations Guide	Using HTTP Compression Enabling HTTP Compression Customizing the File Types IIS Compresses	Added topics with information about HTTP compression.
IIS 6.0 Operations Guide	Throttling Bandwidth	Clarified that the value in the Maximum bandwidth (in kilobytes per second) box must be at least 1024 Kbps.
IIS 6.0 Technical Reference	Events and Conditions That Disable HTTP.sys Response Caching	Added information about uncached responses when accessing a Web site by requesting the root folder with no specific file, and about Web sites with IP Restriction lists.
IIS 6.0 Technical Reference	Using HTTP Compression for Faster Downloads	Added information about configuring HTTP compression for individual sites and site elements.

Reference

Content Type	Topic	Description
IIS 6.0 Operations Guide	NTAuthenticationProviders Metabase Property	Added information about the state of the Integrated Windows Authentication setting following installation of Windows Server 2003 Service Pack 1 (SP1) as part of a slipstream installation of a Windows Server 2003 operating system.
IIS 6.0 Operations Guide	MD_ETAG_CHANGENUMBER Metabase Property	Added information about setting this property in an environment with clustered Web servers.
IIS 6.0 Operations Guide	AppPoolQueueLength Metabase Property	Added note that the default value of this property changed with Windows Server 2003 Service Pack 1 (SP1) from 4000 to 1000, with a recommendation to lower the value if IIS is already installed on the server prior to applying the service pack.
IIS 6.0 Operations Guide	FTP Service Events	Added new FTP Service event message 14401: "The server failed to create a data channel connection to a client on local interface ip_address. The FTP data port port_number may be in use by another service or application."
IIS 6.0 Operations Guide	ConnectionTimeout Metabase Property	Added information about the reasons a connection can be considered inactive and disconnected by IIS.
IIS 6.0 Operations Guide	LogEventOnRecycle Metabase Property	Clarified that the flags for this property only determine whether or not IIS will log the type of recycle event in the flag.
IIS 6.0 Operations Guide	AspSxsName Metabase Property AspAppServiceFlags Metabase Property	Corrected list of Windows Components that support Side-by-Side assemblies.
IIS 6.0 Operations Guide	ASP Registry Entries	Created the topic ASP Registry Entries and documented the following ASP registry keys: AspMaxPropertyStringLength AspMaxResponseHeaderLength DisableCachedResponseOnUNCAccessFailure DisableComPlusCpuMetric DisableOOMRecycle EnableChangeNotificationForUNC F5AttackDetectionEnabled FileMonitoringEnabled FileMonitoringTimeoutSeconds HangDetConsecIllStatesThreshold HangDetEnabled HangDetRequestThreshold HangDetThreadHungThreshold MaxCPU MaxCSR ThreadMax
IIS 6.0 Operations Guide	MaxProcesses Metabase Property	Removed erroneous information about setting the value of this property to zero in order to create an unmanaged application pool.
IIS 6.0 Operations Guide	FTP Service Registry Entries	Documented the following FTP service registry keys: AnonymousHomeDirInfoGrace AnonymousHomeDirInfoInterval CacheAnonymousHomeDirInfo
IIS 6.0 Operations Guide	Global Registry Entries	Documented the following global registry keys: DataSetCacheSize DoDirMonitoringForUNC ErrorLoggingDir FileAttributeCheckThreshold ThreadPooldMaxCPU ThreadPoolStartDelay ThreadPoolStartupThreadCount ThreadPoolMaxContextSwitch ThreadPoolRefTraceCounter ThreadPoolExactThreadCount
IIS 6.0 Operations Guide	WWW Service Registry Entries	Documented the following World Wide Web Publishing Service (WWW Service) registry keys: EnableTraceMethod LogErrorRequests MaxConcurrentCgisExecuting UseSharedWPDesktop
IIS 6.0 Operations Guide	DisableSocketPooling Metabase Property	Clarified that setting this metabase property has no effect in IIS 6.0, and included link to information about how to use the new utility, Httpcfg.exe, to allow applications to use the same port on different IP addresses.
IIS 6.0 Operations Guide	ServerListenTimeout Metabase Property ConnectionTimeout Metabase Property HeaderWaitTimeout Metabase Property MinFileBytesPerSec Metabase Property	Clarified that ServerListenTimeout metabase property is not used by the WWW service, but is used by the FTP, SMTP, and NNTP services. Added information about using the ConnectionTimeout, HeaderWaitTimeout, and MinFileBytesPerSec metabase properties instead of ServerListenTimeout for Web service nodes.
IIS 6.0 Operations Guide	SMPProcessorAffinityMask Metabase Property	Added note to warn that setting the SMPProcessorAffinityMask property to zero can create an error condition.
IIS 6.0 Operations Guide	Metabase Property Reference	Documented the following metabase properties: ServerID LogInUTF8 IsapiRestrictionList CgiRestrictionList RestrictionListCustomDesc SuppressDefaultFTPBanner WebDAVMaxAttributesPerElement
IIS 6.0 Operations Guide	Metabase Property Reference	Corrected documentation for the following metabase properties: DoDynamicCompression DoStaticCompression HcDoDynamicCompression HcDoStaticCompression IdleTimeout NotDeletable PeriodicRestartTime RevocationURLRetrievalTimeout RevocationFreshnessTime
IIS 6.0 Operations Guide	NotDeletable Metabase Property	Clarified that the NotDeletable metabase property is invalid in IIS 6.0.
IIS 6.0 Technical Reference	Global Registry Entries	Corrected the following registry key references: DigestContextCacheTTL DigestPartialContextCacheTTL MaxConcurrency MaxPoolThreads PoolThreadLimit ThreadTimeout

Security

Content Type	Topic	Description
IIS 6.0 Deployment Guide	Reviewing Security Policies, Processes, and Procedures	Corrected Table 3.16, "Firewall and Router Security," to refer to port 445 instead of 455 for NetBIOS/SMB.
IIS 6.0 Operations Guide	Using Isolation to Secure Applications	Added topic with information about giving each application pool its own account identity to isolate applications on the Web server.
IIS 6.0 Operations Guide	Configuring Subauthentication and subordinate topics	Corrected references to the AnonymousPasswordSync metabase property.
IIS 6.0 Operations Guide	Encrypting Data When Running WMI–Based Remote Administration Scripts	Added important note that Windows Management Instrumentation (WMI) based scripts must be edited to encrypt authentication credentials and data after upgrading to SP1.
IIS 6.0 Operations Guide	Configuring Constrained Delegation for Kerberos	Added information about Kerberos authentication failing with a 401.3 error if not configured properly.
IIS 6.0 Operations Guide	Integrated Windows Authentication in IIS 6.0 Configuring Integrated Windows Authentication in IIS 6.0 Windows Authentication Provider in ASP.NET Authentication in ASP.NET	Added information about the state of the Integrated Windows Authentication setting following installation of Windows Server 2003 Service Pack 1 (SP1) as part of a slipstream installation of a Windows Server 2003 operating system.
IIS 6.0 Operations Guide	Securing Sites with IP Address Restrictions	Added note about the disabling of the HTTP.sys cache when IP address restriction is used on a Web site.
IIS 6.0 Operations Guide	Enabling Kernel-Mode SSL	Added new topic about kernel-mode Secure Sockets Layer (SSL).
IIS 6.0 Operations Guide	Basic Authentication in IIS 6.0	Added information about administering users and adding them to groups with specific permissions when using Basic authentication.
IIS 6.0 Operations Guide	Requesting a New Server Certificate from an Online CA Configuring SSL on a Web Server or Web Site	Clarified the following issues: The Web Server Certificate Wizard is used to request new server certificates. The request file generated by the Web Server Certificate Wizard is saved by default as C:\Certreq.txt. SSL can be configured for a Web server or a Web site.
IIS 6.0 Operations Guide	Installing Server Certificates	Added note that a password must be specified before the certificate can be assigned to a Web server.
IIS 6.0 Operations Guide	Configuring SSL on a Web Server or Web Site	Added note explaining that users will receive an error message when browsing to a site that does not have SSL completely setup and the Require Secure Channel (SSL) check box is selected for the site.
IIS 6.0 Operations Guide	IIS 6.0 Security Best Practices	Added recommendation to use an encrypted remote connection with WMI-based administration scripts.
IIS 6.0 Operations Guide	Mapping Client Certificates with Directory Service Mapping	Added procedure for enabling directory sService mapping.
IIS 6.0 Operations Guide	Encrypting Data When Running WMI–Based Remote Administration Scripts	Added topic about establishing an encrypted connection when running WMI-based administration scripts on an IIS server over a remote connection.
IIS 6.0 Operations Guide	Configuring Subauthentication and subordinate topics	Corrected references to AnonymousPasswordSync metabase property and added IIsWebService node as recommended configurable location.
IIS 6.0 Operations Guide	Anonymous Authentication in IIS 6.0	Clarified that the IUSR_Computername account, which is a member of the Guests group on computers running IIS, has the same access as members of the Users group by default.
IIS 6.0 Operations Guide	Configuring SSL on a Web Server or Web Site	Added note that users will receive an error when browsing to a Web site that requires SSL if the process of setting up SSL is not complete.
IIS 6.0 Operations Guide	Enabling and Disabling Dynamic Content in IIS 6.0	Added reminder to disable Web service extensions when features are no longer required.
IIS 6.0 Operations Guide	Enabling Web Service Extensions Enabling and Disabling Dynamic Content in IIS 6.0	Added important note that allowing unknown ISAPI extensions or CGI extensions to run on a Web server can leave the server susceptible to attack.
IIS 6.0 Operations Guide	Configuring Subauthentication on a New Installation of IIS 6.0 Configuring Subauthentication in IIS 5.0 Isolation Mode	Added node at which the AnonymousPasswordSync metabase property should be set.
IIS 6.0 Operations Guide	Creating an Authorization Policy Store in Authorization Manager Setting the Scope for the Application	Clarified items in the procedure that must be typed exactly as shown in order for the authorization policy store for IIS 6.0 URL Authorization to be configured successfully.
IIS 6.0 Operations Guide	Setting Metabase Properties for URL Authorization	Removed semi-colons from sample script.
IIS 6.0 Operations Guide	Adding Urlauth.dll as a New Web Service Extension	Added procedure for adding Urlauth.dll as a new Web service extension.
IIS 6.0 Operations Guide	Adding the IIS Worker Process to the Readers Role	Added procedure for adding the IIS worker process to the Reader role.
IIS 6.0 Operations Guide	Exporting a Client Certificate for One-to-One Mapping	Added note that client certificate mapping programs for IIS 6.0 and Windows Active directory services accept certificates formatted as either binary or Base-64 encoded.
IIS 6.0 Operations Guide	Setting NTFS Permissions for Directories or Files and subordinate topics	Clarified that IIS Manager is used to set permissions on Web sites, directories, and virtual directories, and that to set permissions for individual files you must use a programmatic solution, such as Adsutil.vbs.
IIS 6.0 Operations Guide	Advanced Digest Authentication in IIS 6.0 Digest Authentication in IIS 6.0 UseDigestSSP Metabase Property	Added note that the WWW service must be restarted for a change in the UseDigestSSP metabase property to take effect.
IIS 6.0 Operations Guide	Configuring SSL Host Headers Obtaining and Installing a Wildcard Server Certificate Configuring Server Bindings for SSL Host Headers Advanced Digest Authentication	Added new topics that explain how to obtain and install a wildcard server certificate that can be used for Web sites that have the same IP address:port binding, as well as how to use Adsutil.vbs to configure SSL host headers and how to ensure that secure content is not served for an HTTP request.
IIS 6.0 Technical Reference	Advanced Digest Authentication	Added information about configuring the registry keys DigestPartialContextCacheTTL and DigestContextCacheTTL.
IIS 6.0 Technical Reference	.NET Passport Authentication	Added information about configuring Web sites to conform to .NET Passport privacy guidelines.
IIS 6.0 Technical Reference	Digest Authentication	Added information about the issue where logging on with a user principal name (UPN) in the form username@domain.top-leveldomain fails.
IIS 6.0 Technical Reference	Integrated Windows Authentication	Added information about the state of the Integrated Windows Authentication setting following installation of Windows Server 2003 Service Pack 1 (SP1) as part of a slipstream installation of a Windows Server 2003 operating system.
IIS 6.0 Technical Reference	Authentication Methods Supported in IIS 6.0	Added information about the importance of using authentication with IIS when resources on the Web server need to be restricted to approved users, and clarified that IIS goes in order from the most secure to the least secure authentication method when multiple authentication methods are configured.
IIS 6.0 Technical Reference	Integrated Windows Authentication	Added information that a user logged on to the local computer as a domain user will not be prompted to authenticate if they access a network computer in that same domain.
IIS 6.0 Technical Reference	Controlling Access to a Database on a Web Server	Added topic with information about controlling access to databases from Web applications.
IIS 6.0 Technical Reference	Access Control Lists	Added three tables outlining the default Access Control Lists (ACLs) and privileges for the IIS_WPG group.
IIS 6.0 Technical Reference	Kernel-Mode SSL	Added topic about running SSL in kernel mode instead of user mode (the default) in Windows 2003 Server SP1.
IIS 6.0 Technical Reference	Configuring Application Pool Identity in IIS 6.0	Added section about the IIS_WPG group.
IIS 6.0 Technical Reference	SSL and SF_NOTIFY_READ_RAW_DATA Filters	Added information about how SF_NOTIFY_READ_RAW_DATA works with SSL when running worker process isolation mode.
IIS 6.0 Technical Reference	Using URL Authorization	Removed semi-colons from sample script.
IIS 6.0 Technical Reference	Digest Authentication Advanced Digest Authentication	Added note that the WWW service must be restarted for a change in the UseDigestSSP metabase property to take effect.

Server Administration

Content Type	Topic	Description
IIS 6.0 Operations Guide	Configuring Launch Permissions for COM+ Server Objects	Added important note about the IUSR_computername and IWAM_computername accounts no longer being granted launch permissions to COM+ objects by default after installations of IIS on Windows Server 2003 SP1.
IIS 6.0 Operations Guide	Implementing Incremental Web Site Numbering	Added new topic with information about incremental Web site numbering.
IIS 6.0 Operations Guide	Renaming a Web Service Extension	Added topic with information about renaming Web Service extensions.
IIS 6.0 Operations Guide	Administering Servers Remotely in IIS 6.0	Mde references to the Remote Administration (HTTP) Tool consistent.
IIS 6.0 Operations Guide	Uninstalling IIS	Added topic with procedure on uninstalling IIS.
IIS 6.0 Operations Guide	Configuring Application Pool Identity with IIS 6.0	Added JScript code example to show how to programmatically change the account under which an application pool runs.
IIS 6.0 Operations Guide	Setting Active Directory User Isolation Using Iisftp.vbs	Changed references to the following parameters: From FTPDir\|FTPRoot to msIIS-FTPDir\|msIIS-FTPRoot.
IIS 6.0 Operations Guide	Reliability Features Configuring Web Gardens with IIS 6.0	Clarified information about how web gardens benefit reliability and performance.
IIS 6.0 Operations Guide	Listing IIS Backup Configurations Using Iisback.vbs	Added note that iisback /list uses Coordinated Universal Time (UTC) for date and time stamps.
IIS 6.0 Operations Guide	Enabling ASP.NET	Added note to clarify the difference between using the Configure Your Server wizard or Add or Remove Programs to install IIS 6.0 and enable ASP.NET.
IIS 6.0 Operations Guide	Configuring Application Pool Identity with IIS 6.0	Added the following procedures: To change the account under which an application pool runs using the Adsutil.vbs administration script To programmatically change the account under which an application pool runs
IIS 6.0 Operations Guide	Enabling and Disabling Dynamic Content in IIS 6.0	Added information about needing to enable FrontPage Server Extensions and ASP in order for Visual Studio .NET 2003 applications to work on IIS 6.0.
IIS 6.0 Operations Guide	Setting Up Virtual Servers for Clustering	Corrected the procedure step explaining how to copy IIS configuration from one node to other nodes in a server cluster.
IIS 6.0 Technical Reference	Configuring Rapid-Fail Protection	Updated information about Rapid-Fail Protection.
IIS 6.0 Technical Reference	Creating Application Pools	Removed erroneous reference to an unmanaged application pool.

Site Administration

Content Type	Topic	Description
IIS 6.0 Deployment Guide	Creating Web Sites and Home Directories Create a Web Site	Added information about storing Web site content in a location where "/bin" will not be part of the requested URL or a 404 error will be returned.
IIS 6.0 Operations Guide	Creating Global MIME Types	Added information about creating Multipurpose Internet Mail Exchange (MIME) types for files without extensions, and corrected steps in the procedure.
IIS 6.0 Operations Guide	Creating MIME Types for a Web site or directory	Added information about creating MIME types for files without extensions.
IIS 6.0 Operations Guide	Editing Global MIME Types Editing MIME Types for a Web site or directory Removing Global MIME Types	Created topics with procedures to edit and remove MIME types.
IIS 6.0 Operations Guide	Removing Global MIME Types Removing MIME Types from a Web site or directory	Added information about removing MIME types from the registry at HKEY_CLASSES_ROOT\extension after removing the MIME type mapping.
IIS 6.0 Operations Guide	Renaming Virtual Directories	Added new topic about renaming virtual directories.
IIS 6.0 Operations Guide	Setting FTP Messages and Directory Output Style	Added procedure for suppressing the default FTP banner using the SuppressDefaultFTPBanner metabase property.
IIS 6.0 Operations Guide	Redirecting FTP Requests to Directories or Network Shares	Added information and procedure about configuring an FTP site so that users browsing the site can see a directory entry for a virtual directory.
IIS 6.0 Operations Guide	Creating FTP Sites Using Iisftp.vbs	Added an example and changed references to the following parameters: From /domain DomainName to /ADdomain DomainName. From /Admin [Domain\]User to /ADadmin [Domain\]User. From /AdminPwd Password to /ADpass Password.
IIS 6.0 Operations Guide	Using FrontPage Server Extensions to Extend Web Sites	Clarified that the _vti_bin virtual directory of new FrontPage Server Extensions virtual servers must be assigned to the MSSharePointPool application pool in order to remotely administer a Windows® SharePoint® Services (STS) Web site.
IIS 6.0 Operations Guide	Working with MIME Types and subordinate topics	Added important note about not using wildcard MIME types on production servers, and revised wording in procedures about providing valid MIME types.
IIS 6.0 Operations Guide	Setting FTP Messages and Directory Output Style	Added note that although the FTP exit message box can contain up to 30,000 characters, the message size is limited to 1024 characters (including the reply code, blank, carriage return, and null).
IIS 6.0 Operations Guide	Hosting Multiple Web Sites Naming Web Sites	Added note that host headers for Web sites cannot contain Unicode characters because the Domain Name System (DNS) standard doesn't recognize Unicode characters.
IIS 6.0 Technical Reference	Metabase Structure in IIS 6.0	Added important note about enabling sequential numbering of Web sites in IIS 6.0.

Troubleshooting

Content Type	Topic	Description
IIS 6.0 Operations Guide	FTP server terminates user connections and returns MSFTPSVC event message 8	Added topic with information about hosting a high-load FTP site with the FTP anonymous home directory on a UNC share, and receiving FTP service message 8.
IIS 6.0 Operations Guide	Cannot launch COM objects with IUSR_computername or IWAM_computername accounts	Added topic with information about the IUSR_computername and IWAM_computername accounts no longer being granted launch permissions by default on installations of IIS on Windows Server 2003 SP1.
IIS 6.0 Operations Guide	UPN logons not accepted by IIS 6.0 server in Windows 2000 domain	Added topic with information about the correct format for logins when the IIS 6.0 server is a member of a Windows 2000 domain, and is configured for both Digest authentication and subauthentication.
IIS 6.0 Operations Guide	Install certificate after deleting the pending certificate request	Added topic with information about how to install a certificate if the pending certificate request was deleted from the server.
IIS 6.0 Operations Guide	CGI Processes Will Not Start	Added information about the default anonymous user account, IUSR_computername, being denied access to executable programs in the windir\System32 folder and how to resolve the problem if failures occur when attempting to call external programs from CGI code.
IIS 6.0 Operations Guide	Cannot make immediate request for a Web server certificate	Added topic with information about not being able to request a Web server certificate immediately after installing Certificate Services on a server and configuring it to be either an Enterprise Root certification authority (CA) or a stand-alone certification authority.
IIS 6.0 Operations Guide	Client cannot renegotiate request and returns an HTTP 413 error	Clarified that clients may receive an HTTP 413 error when uploading large files if client certificates are enabled on a Web server, Web site, or on individual directories or files on the site.
IIS 6.0 Operations Guide	Configuring Custom Error Messages	Added information about storing a custom error URL in the application pool that directs the request to the custom error URL so that the worker process can serve the custom error page successfully.
IIS 6.0 Operations Guide	Clients browsing to a Web site receive HTTP 403.4 - Forbidden: SSL is required to view this resource error, but the Web site is not configured to use SSL	Added information about troubleshooting an issue where clients receive an error message about requiring SSL when the Web site is not required to use SSL.
IIS 6.0 Operations Guide	Client requests receive a "503: Service Unavailable" error	Updated information about the "503: Service Unavailable" error message, which occurs when the server is unable to process a request, and linked to a topic with more information about increasing the application pool queue length limit when the Httperr.log file includes the 503 error code along with the message "QueueFull".
IIS 6.0 Operations Guide	When adding a new Web site, the Web site is not added, and the error message "No more memory is available for security information updates" is displayed (also, error 1131 might appear in the system Event Log)	Added information about issue and steps to correct the problem.
IIS 6.0 Operations Guide	All requests with /bin in the URL are rejected and return a 404 error	Added information about issue and steps to correct the problem.
IIS 6.0 Operations Guide	Client requests time out or error out	Clarified that ServerListenTimeout metabase property is not used by the WWW service, but is used by the FTP, SMTP, and NNTP services.
IIS 6.0 Operations Guide	Requests for static files return 404 error	Added content outlining the following options for serving files with unknown file name extensions: Add the file name extension to the MIME map on specific Web sites or directories. Turn off the Known Extensions feature on the specific Web sites or directories. Turn off the Known Extensions feature on the Web server. Added important note that turning off Known Extensions on the Web server lessens the security of the server.
IIS 6.0 Operations Guide	When attempting to download a file from an FTP site that is hosted on IIS 6.0, a "File not found" or similar error is returned, and the file name in the error message contains a caret (^) character	Added information about issue and steps to correct the problem.
IIS 6.0 Operations Guide	Applications are denied access to resources	Added note that when IIS 6.0 worker processes run under the default low-privileged Network Service user account, application events, including CGI events, are written to the Application event log not the System event log.
IIS 6.0 Operations Guide	Client receives 403.16 error when IIS cannot process a complete certificate chain	Added information about adding a certificate to the Intermediate Certification Authorities folder on the local computer when the client receives a 403.16 error.
IIS 6.0 Operations Guide	Computer runs slowly when scripts using ADSI scripts to query IIS 6.0	Added information about memory usage when running a program that uses multiple threads and Active Directory Service Interfaces (ADSI) scripts to query Internet Information Services (IIS).
IIS 6.0 Operations Guide	Advanced Troubleshooting with IIS Tracing and subordinate topics	Added multiple topics that describe how to configure and execute new IIS tracing features.
IIS 6.0 Operations Guide	Tracing Events Reference	Added new topic that describes tracing events available with IIS Admin tracing, IIS Request-based Tracing, and IIS Currently-executing request tracing.
IIS 6.0 Technical Reference	Advanced IIS Troubleshooting with Tracing and Debugging and subordinate topics	Added multiple topics that address the new tracing features in IIS 6.0 SP1. These features include the following: Currently-executing requests tracing: allows tracing of all requests executing on the IIS server. This tracing feature is helpful when requests have become slow or unresponsive and it is unclear which Web site or application is processing the requests. Request-based tracing: allows tracing of requests for a specific site or for a specific component of IIS, such as ASP pages. This tracing feature helps narrow troubleshooting efforts to a specific site or IIS component. IIS Admin tracing: allows tracing of the IIS Admin service during startup and shutdown events. If the IIS Admin service hangs during startup and shutdown, this tracing feature can help determine why.
IIS 6.0 Technical Reference	Enabling Debugging for IIS	Replaced the script for OrphanActionExe.

Web Applications

Content Type	Topic	Description
IIS 6.0 Operations Guide	ASP.NET Settings Schema Reference	Linked topic to MSDN for information about the individual elements in the schema and removed the subordinate topics.
IIS 6.0 Operations Guide	Process Model Modes	Updated which processModel settings still apply in worker process isolation mode.
IIS 6.0 Operations Guide	What's New in ASP	Corrected list of Windows Components that support Side-by-Side assemblies.