Sorry for simple question.
Is VS TE supports functional GUI based testing (like Robot, WinRunner, SilkTest)?
Re: Functional testing
Not exactly. VSTE is designed mainly for unit testing of code (similar to NUnit.) It does allow some web site testing, but I believe it deals with requests/responses as opposed to mouse clicks (but don't quote me on that.) The .Net framework should include API calls to manipulate the mouse and keyboard, so you could write unit tests that exercise the GUI. But I'm not sure how difficult this would be when compared to other, more mature, testing tools...