Resetting Visual Studio Experimental Instance to its super-clean initial state

If you are doing Visual Studio extensibility (VSX) work, you are probably aware of the existence of the Visual Studio "Experimental" instance. This is basically an instance of VS that has its own isolated registry, settings, extensions, etc. This allows you to test your extensions to VS without polluting your main development environment.

Sometimes, the environment might get corrupted for whatever reason, or it might be that you just want to test your extension with a clean environment after messing with it for a while.

The Visual Studio SDK does come with a tool to reset the experimental instance, available from your Start menu with the name "Reset the Microsoft Visual Studio 2010 Experimental instance". That will not, however, give you the pristine environment you got the first time you start the experimental instance to test your first extension....

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