When I saw the MSDN Magazine article A Visual Studio Add-In That Converts C# Code To Visual Basic I simply had to extend this addin with our parser-based converter. Basically, I took the code I wrote for Code Converter for .NET 2.0 - Online, as well as Offline and put it into the addin, which has now an additonal conversion service in its list (conveniently the first one):

I have also updated the installer (which is now a release build, why was that provided as a debug build in the first place?), to be found in the PasteAsVBSetup\Release directory.
PasteAsExtended.zip (721.36 KB)
Enjoy!