Updates for the .NET Framework 2.0 SP2 and for the .NET Framework 3.0 SP2 may chain-install other updates

When you install certain updates for the .NET Framework 2.0 SP2 or for the .NET Framework 3.0 SP2, these updates cause additional updates to be installed. This occurs because the Extended Protection Security Advisory introduced the new extended protection feature that includes new dependencies on newly introduced "types." This new feature consists of new functionality in the .NET Framework 2.0 SP2 and in the .NET Framework 3.0 SP2 feature layers. The new Windows Communication Foundation (WCF) feature in the .NET Framework 3.0 SP2 feature layer has a dependency on the corresponding new feature in the .NET Framework 2.0 SP2 feature layer and the new "type." The new ASP.NET feature in the .NET Framework 2.0 SP2 feature layer also has a new dependency on the new feature in System.Net (networking stack).

Updates for components of the .NET Framework are cumulative. Therefore, an update for the ASP.NET component that was released after the Extended Protection Security Advisory will always contain the new ASP.NET feature for extended protection. This new feature requires that the previously mentioned feature dependency (on the new "type") be met. Updates for the WCF and ASP.NET components will chain-install additional updates as required in order to satisfy this dependency. If this dependency is not met, you may experience the issue that is described in the following article in the Microsoft Knowledge Base: 

• In Windows XP and in Windows Server 2003, updates to the ASP.NET component in the .NET Framework 2.0 SP2 will also install the following update:
  980773 Description of the NCL update for the .NET Framework 3.5 Service Pack 1 and the .NET Framework 2.0 Service Pack 2 on Windows XP and on Windows Server 2003: June 8, 2010
• In Windows Vista SP1 and in Windows Server 2008, updates to the ASP.NET component in the .NET Framework 2.0 SP2 will also install the following update:
  980843 Description of the NCL update for the .NET Framework 3.5 Service Pack 1 on Windows Vista Service Pack 1 and on Windows Server 2008 Service Pack 1: June 8, 2010
• In Windows Vista SP2 and in Windows Server 2008, updates to the ASP.NET component in the .NET Framework 2.0 SP2 will also install the following update:
  980842 Description of the NCL update for the .NET Framework 3.5 Service Pack 1 on Windows Vista Service Pack 2 and on Windows Server 2008 Service Pack 2: June 8, 2010
• In Windows XP and in Windows Server 2003, updates to the WCF component in the .NET Framework 3.0 SP2 will also install the following updates:  
  980773 Description of the NCL update for the .NET Framework 3.5 Service Pack 1 and the .NET Framework 2.0 Service Pack 2 on Windows XP and on Windows Server 2003: June 8, 2010
  

  976765 Description of the ASP.NET update for the .NET Framework 3.5 Service Pack 1 and the .NET Framework 2.0 Service Pack 2 on Windows XP and on Windows Server 2003: June 8, 2010
• In Windows Vista SP1 and in Windows Server 2008, updates to the WCF component in the .NET Framework 3.0 SP2 will also install the following updates:
  980843 Description of the NCL update for the .NET Framework 3.5 Service Pack 1 on Windows Vista Service Pack 1 and on Windows Server 2008 Service Pack 1: June 8, 2010
  

  976767 Description of the ASP.NET update for the .NET Framework 3.5 Service Pack 1 on Windows Vista Service Pack 1 and on Windows Server 2008 Service Pack 1: June 8, 2010
• In Windows Vista SP2 and in Windows Server 2008, updates to the WCF component in the .NET Framework 3.0 SP2 will also install the following updates:
  980842 Description of the NCL update for the .NET Framework 3.5 Service Pack 1 on Windows Vista Service Pack 2 and on Windows Server 2008 Service Pack 2: June 8, 2010
  

  976768 Description of the ASP.NET update for the .NET Framework 3.5 Service Pack 1 on Windows Vista Service Pack 2 and on Windows Server 2008 Service Pack 2: June 8, 2010