Microsoft Download Center Archive
 | .NET Framework 1.1 Service Pack 1 CLR Security Update for Windows 2000, Windows XP, Windows 2003 Server x64/IA64 and Windows 2003 Server R2 x64/IA64, Windows Vista, Windows Server 2008 |
A security issue has been identified that could allow an attacker to tamper with digitally signed content without being detected, when this content is being consumed by an application that makes uses of the Microsoft .NET Framework on a Windows-based system.
- A security issue has been identified that could allow an attacker to tamper with digitally signed content without being detected, when this content is being consumed by an application that makes uses of the Microsoft .NET Framework on a Windows-based system. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer.
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Files
 | Status: DeletedThis download is no longer available on microsoft.com. The downloads below are archives provided by the Internet Archive Wayback Machine from the Microsoft Download Center prior to August 2020. |
| File | Size |
|---|---|
 NDP1.1sp1-KB979906-X86.exeSHA1: 642ace45800ffefd77231150a07a2bdfe170732c | 13.32 MB |
System Requirements
Operating Systems: Windows 2000, Windows Server 2003 Itanium-based editions, Windows Server 2003 x64 editions, Windows Server 2008, Windows Vista, Windows XP
Note: More information about Service Pack levels currently supported for the platforms listed above can be found in the following page: Microsoft Product Support Lifecycle.
Installation Instructions
- Click the Download button on this page to start the download, or select a different language from the Change language drop-down list and click Change.
- Do one of the following:
- To start the installation immediately, click Run.
- To save the download to your computer for installation at a later time, click Save.
- To cancel the installation, click Cancel.