server variables

Are server variables the same in .net, as they were in classic asp? If not, does anyone know where I can obtain a list of the updated .net sv's?The HTTPRequest Class offers some of them see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemwebhttprequestmemberstopic.asp

or you can still use the Server Variables but use the above where you can.

Simon
thank you!