In an effort to stay up to date with the changing technology and languages, I tried to install the WPF extensions for Visual Studio 2005 on my computer only to be rebuffed by Windows Installer. Here is the error message:
Setup has detected that a prerequisite is missing. To use Visual Studio 2005 extensions for .NET Framework 3.0 (WCF & WPF), November 2006 CTP you must have the .NET Framework 3.0 runtime installed. Please install the .NET Framework 3.0 runtime and restart setup
I saw several recommendations to uninstall .NET 3.0 sp1 and then install the extensions and finally reinstall the service pack, back I wasn't interested in that. Fortunately, someone posted the solution in the MSDN forums. The key is to tell the installer to override the prerequisites.
msiexec /i vsextwfx.msi WRC_INSTALLED_OVERRIDE=1