I thought this was a privilege issue but I logged on as admin and still couldn't get more than a brief flash of the command window. I am just double clicking on the exe file I found in the 7.0 sdk
As a side question, can you just go into the GAC manually and delete something??
Cheers,
Berryl
It's a command-line utility. You ran it without arguments (by the sound of it) and it quickly exited. Run cmd.exe and run gacutil from there.
You can also use the Windows Explorer extension to delete assemblies - just browse to C:\Windows\assembly (or whatever your Windows directory is).