Whenever I try to install the windows client it fails with the following error message:

"Error 1904.Module C:\Program Files\Novell\Groupwise\grpwise.exe failed to register. HRESULT -2147220473. Contact your support personnel."

I've tried removing it but it fails with the same message. I've removed NT Messaging, combed through the registry and deleted all references I find to Groupwise. Nothing seems to work. I'm running Windows XPSP3 with all of the latest updates applied. Any ideas?