error 1904 c:\Program Files\Novel\Groupwise\gwabdlg.dll failed to
register. HRESULT -1073741819

I found a TID that mentioned this problem for versions 7.03 using
setupIP, but I am trying to do a direct install and not using setup IP.
I did try to copy the install folder locally to the Root of the
C:Drive, and it made no difference.

Full administrative rights for the user in question.