Tried unistalling and reinstalling IIS6 compatibility components, but ASP.NET issus is still there....
Here are the tries I have done:
1)Installing .NET framework 3.2.1 integrated in windows 2008R2 (after first requirements check). Still failing check
2)Trying to use autofix included in the install, that tells that installas and configures IIS with .NET framework 2: still failing check
3)tried to follow this guide: https://www-secure.symantec.com/connect/blogs/configuring-64-bit-aspnet-new-servers, except for the last passage, that I don't know hot to do on win 2008 R2, still failing check
4)Tried to unistall all IIS6 compatibility (anche then also RPC over HTTP feature) and reinstalling them, but still failing check