I have no problems with WebForms, everything i do, it work.
Now i created new test project - MVC3 app - http://prntscr.com/98ckk
and i just publish it - Visual Studio - Build - Publish - to c:\test http://prntscr.com/98cq8
Then i transferred my files to windows server in inetpub/wwwroot/test
Then i created new website - pointing to this folder. However when i test it "ip/test" i get 403 - Forbidden: Access is denied.
p.s i already have IIS->Website site whitch is MVC and is working. But i dont remember what i did.