Known Internet Explorer Security Feature Issues

Published: June 11, 2010

Updated: June 11, 2010

Applies To: Windows 7, Windows Vista

The enhanced security settings introduced in Windows® Internet Explorer® 7 might create compatibility issues for some Web sites and applications. This section provides an overview of the specific security features that the Internet Explorer Compatibility Test tool can test for and identify, as well as the recommended ways to address any issues.

You can address the issues identified by the Internet Explorer Compatibility Test tool and still receive the enhanced security benefits of deploying a new version of the Windows® operating system, by using one of the following two approaches:

Fixing the Web site or the Web application
Deploying a workaround

Fixing the Web Site or Web Application

Fixing the Web site or Web application by changing the code itself is typically the recommended way to address a compatibility issue uncovered by the Internet Explorer Compatibility Test tool. Although this approach may involve higher initial costs or additional development time to deploy, this kind of fix has the advantage of permanently solving the problem, and it results in no long-term maintenance or ongoing operational costs. After you change the code to eliminate the issue, all of your users will be able to access the site without experiencing an issue. However, if you do not have access to the code or if your time and resources do not permit taking advantage of this approach, an alternative fix is to deploy a workaround.

Deploying a Workaround

A workaround is a fix that involves applying alternative registry settings to address a compatibility issue. Although deploying a workaround may seem quicker and easier than rewriting the code, this approach does involve some long-term maintenance requirements. For example, you must ensure that all new users have the correct set of features disabled on their workstations or they will experience issues with the Web site or Web application. A workaround is also a less preferable approach because it may result in a reduction in security for that particular issue. However, a workaround may still be more preferable than going without the overall security enhancement that you receive by deploying Windows Vista®. You may want to think about changing registry settings as a good short-term solution while the long-term solution of changing the code is still in development.

In This Section

Topic Name	Description
Event 1021- MIME Handling Restrictions	Includes detailed information about the MIME Handling Restrictions event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1022 - Windows Restrictions	Includes detailed information about the Windows Restrictions event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1023 - Zone Elevation Restrictions	Includes detailed information about the Zone Elevation Restrictions event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1024 - Binary Behaviors Restrictions	Includes detailed information about the Binary Behaviors Restrictions event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1025 - Object Caching Protection	Includes detailed information about the Object Caching Protection event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1026 - ActiveX Blocking	Includes detailed information about the ActiveX Blocking event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1027 - Pop-Up Blocking	Includes detailed information about the Pop-Up Blocking event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1028 - Automatic Download Blocking	Includes detailed information about the Automatic Download Blocking event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1030 - Local Machine Zone Lockdown (LMZL)	Includes detailed information about the Local Machine Zone Lockdown (LMZL) event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1031 - Centralized URL Parsing	Includes detailed information about the Centralized URL Parsing event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1032 - Internationalized Domain Names (IDN) Support	Includes detailed information about the Internationalized Domain Names (IDN) Support event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1033 - Secure Sockets Layer (SSL)	Includes detailed information about the Secure Sockets Layer (SSL) event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1034 - Cross-Domain Barrier and Script URL Mitigation	Includes detailed information about the Cross-Domain Barrier and Script URL Mitigation event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1035 - Anti-Phishing	Includes detailed information about the Anti-Phishing event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1036 - Manage Add-ons	Includes detailed information about the Manage Add-ons event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1037 - Protected Mode	Includes detailed information about the Protected Mode event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1040 - Cascading Style Sheet (CSS Fixes)	Includes detailed information about the Cascading Style Sheet (CSS Fixes) event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1041 - UIPI Extension Blocked	Includes detailed information about the UIPI Extension Blocked event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1042 - UIPI Cross Process Window Message	Includes detailed information about the UIPI Cross Process Window Message event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1046 - Cross-Site Scripting Filter	Includes detailed information about the Cross-Site Scripting Filter event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1047 - Intranet at Medium Integrity Level	Includes detailed information about the Intranet at Medium Integrity Level event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1048 - DEP/NX Crash Recovery	Includes detailed information about the Data Execution Prevention/No Execute (DEP/NX) Crash Recovery event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1049 - Standards Mode	Includes detailed information about the Standards Mode event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1056 - File Name Restriction	Includes detailed information about the File Name Restriction event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1058 - Codepage Sniffing	Includes detailed information about the Codepage Sniffing event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1059 - Ajax Navigation	Includes detailed information about the Ajax Navigation event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1061 - Application Protocol	Includes detailed information about the Application Protocol event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1062 - Windows Reuse Navigation Restriction	Includes detailed information about the Windows Reuse Navigation Restriction event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1063 - MIME Restrictions - Authoritative Content Type Handling	Includes detailed information about the MIME Restrictions - Authoritative Content Type Handling event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1064 - MIME Sniffing Restrictions - No Image Elevation to HTML	Includes detailed information about the MIME Sniffing Restrictions - No Image Elevation to HTML event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1065 - Web Proxy Error Handling Changes	Includes detailed information about the Web Proxy Error Handling Changes event, including a description of the event, how the event is logged, and any remediation or security risks.
Event 1073 - Certificate Filtering	Includes detailed information about the Certificate Filtering event, including a description of the event, how the event is logged, and any remediation or security risks.

Fixing the Web Site or Web Application

Deploying a Workaround

In This Section

See Also

Concepts