Update for the .NET Framework 3.5 Service Pack 1 (May 2009)

Applies to: .NET Framework 3.5 Service Pack 1
Install this update to address a set of known issues with the Microsoft .NET Framework 3.5 Service Pack 1, the Microsoft .NET Framework 3.0 Service Pack 2, and the Microsoft .NET Framework 2.0 Service Pack 2. After you install this update, you may have to restart your computer.

Download this update

The following files are available for download from the Microsoft Download Center:

For Windows XP and for Windows Server 2003

Download The Microsoft .NET Framework 3.5 Family Update for Windows XP x86 and Windows Server 2003 x86

Download The Microsoft .NET Framework 3.5 Family Update for Windows XP x64 and Windows Server 2003 x64

For Windows Vista and for Windows Server 2008

Download The Microsoft .NET Framework 3.5 Family Update for Windows Vista x86 and Windows Server 2008 x86

Download The Microsoft .NET Framework 3.5 Family Update for Windows Server 2008 IA-64

Download The Microsoft .NET Framework 3.5 Family Update for Windows Vista x64 and Windows Server 2008 x64

Note This update does not apply to the following Windows operating systems:
  • Windows 7
  • Versions of Windows later than Windows 7
  • Windows Server 2008 R2
  • Versions of Windows Server later than Windows Server 2008 R2
For these operating systems, we recommend you install the latest update from Windows Update.

The issues that this update fixes

The update for the .NET Framework 3.5 SP1 fixes the issues that are described in the following articles in the Microsoft Knowledge Base:
958481 List of the issues that are addressed by the Application Compatibility Update for the .NET Framework 2.0 Service Pack 2

958483 List of the issues that are addressed by the Application Compatibility Update for the .NET Framework 3.0 Service Pack 2

958484 List of the issues that are addressed by the Application Compatibility Update for the .NET Framework 3.5 Service Pack 1

References

Download the Microsoft .NET Framework 3.5 Service Pack 1