I'm trying to accurately determine what edition of Visio 2000 is installed. The editions I'm talking about are Professional, Standard, and Technical. Right now, I'm using the ProductID found at SOFTWARE\Microsoft\Visio\6.0\Registration\ProductID, but I believe if any other CDkey is used, the Product ID will be slightly different. Does anyone know what part of the ProductID, if any, determines what edition Visio is, or any better way to find out? Here are the Product IDs, if it helps. Visio 2000 Standard 52609-270-8563213-02137 Visio 2000 Technical 52633-270-8772137-02409 Visio 2000 Professional 52625-270-8717921-02626 I'm not sure what exactly which each set of numbers mean.