How do you tell the Visual Studio project type from an existing Visual Studio project

Question

Using Visual Studio 2005.

Is there anything in the .sln or .vcproj files (or anywhere else) that defines the project type / subtype?

Edit: What I mean is th

Answer 1

1. Right Click on Project of a solution.
2. Open Properties -> Application Tab.
3. On the right you can see 'Output Type' which defines your project type of an existing solution.