I had the same problem. I tried the Run aspnet_regiis.exe -i and that didnt work
I reinstalled VS as per the help instructions and still had the problem
what solved it for me was, IIS needs to have Integrated Windows authenticatio
   
    ----- Davy wrote: ----
   
    Run aspnet_regiis.exe -i and it will work
   
    "Jeanie" <anonymous@discussions.microsoft.com> wrote in messag
    news:210BB188-B69E-48DA-A780-5665DA6FA5F5@microsoft.com..
    > In trying to go through the Visual Studio.Net Walkthrough, I receive th
    following error  "Visual Studio.Net has detected that the specified we
    server is not running ASP.NET version 1.1"  when trying to open a ne
    project.  I have added the file Get_aspx_ver as suggested in the article t
    resolve this problem, but I still receive this error.  I am running Visua
    Studio.net Enterprise Architect version 2003 on a Windows XP Professiona
    OS.  What else can I try
    >