Differentiating Between Visual Studio Versions

I need to figure out which version of Visual Studio 2008 is installed on particular computers.

Is there a way I can differentiate b开发者_如何学编程etween Visual Studio Team System 2008 vs Visual Studio 2008 Development Edition?

Are there particular files installed for one that are not installed for the other?

To Clarify my question, I would like to differentiate between:

• Visual Studio 2008 Standard Edition
• Visual Studio 2008 Professional Edition
• Visual Studio Team System 2008 Architecture Edition
• Visual Studio Team System 2008 Database Edition
• Visual Studio Team System 2008 Development Edition
• Visual Studio Team System 2008 Test Edition
• Visual Studio Team System 2008 Team Suite

I think the registry would be your best bet. I've found the following key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VisualStudio\9.0\InstalledProducts

Under this there's a key for each product installed:

• Crystal Reports
• ...
• Microsoft Silverlight Projects
• ...
• Team Explorer
• Team System - Database Edition
• ...

I don't know whether there's enough there to go on to uniquely identify each version, but it might get you most of the way there.