To run the file click on Start Menu then All Programs (or Program Files, depending on the OS) then "Microsoft Visual Studio .NET" then "Visual Studio .NET Tools" then "Visual Studio .NET Command Prompt". When the command window appears, then type:

aspnet_regiis -c

>After loading SP2, my validation controls could not find their required JavaScript files. These files are in a folder tree that starts with "aspnet_client". The lowest folder in this tree has a name that represents the "build" of .NET which in the past was "1_0_3705_0". Now, with the new build the validation controls are looking for "1_0_3705_288", but the load of SP2 did not put this new stuff anywhere on my system - at least not anywhere that I could find. The error message that appears also says you can re-install by running "aspnet_regiis-c" which I also could not find.
>
>I got my system to work by simply re-naming the folder as described above, but if the JavaScript actually did change, then it is not completely correct.
>
>Dick Harrold