WCF Extensions and .NET 3.0 SP1

Having issues installing the WCF Extensions on Visual Studio 2005 when you have .NET 3.0 SP1 installed?  Getting an error message the looks something like the following? 

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.

Well, instead of just installing the application by double clicking on the MSI, run it the following way.  This ends up bypassing the prereq checks and it installs successfully.  Yay to broken installers!

msiexec /i vsextwfx.msi WRC_INSTALLED_OVERRIDE=1

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