Vista - Cannot install Virtual Server 2005 R2 enterprise x64 on Vista timatx64 with SP2

I am having problems installing Virtual Server 2005 R2 Enterprise on my Vista Ultimate x64 with SP2

I have formatted my PC and reinstalled a clean OS, moving from Vista Ultimate x86 to x64 with SP2. I researched the web and did the installation of IIS7 as detailed in various websites. (CGI, II6 config compatability etc)

When I try to install Virtual Server, first indication that there was going to be a problem was when I get to the page showing the port Virtual Server was going to use ... it was BLANK ! (I was expecting 80 as I have installed the same on Vista Ultimate x86 and got it working before)

True enough, in the final page before install I get a message that installing the Administration Website requires IIS and the administration service to be running and it will not let me install, so installion did not even start !

Clearly the install did not detect the webserver at all. To verify all is well with IIS7, I pointed IE to the local machine and I see the default IIS7 webpage so IIS7 is running.

I have no way to install Virtual Server 2005 R2 Enterprise.
Has anyone encountered this problem and how do you solve it ?

Hi All,

I solved the problem minutes after my earlier post so I am posting here for the benefit of anyone else who may be experiencing the same problem.

Although I was logged in as administrator, you need to "run as" administrator for the Virtual Server installation executable. If you do not, you may see the dialog box as in my post above without a hint that it could be a permission problem !

regards !