...can be checked out online here:
http://www.microsoft.com/en-us/discover/1994/
Well, yes, this was a very simple HTML page on IIS 1.0 on Win NT 3.5. Even the web was youthful than, I remember the days of gopher, Trumpet Winsocket and such stuff. 
...found in a tweet of @shanselman.
And there´s one Microsoft web in the archives of 1996.