These are the GroupWise 5.5 snapins for NetWare Administrator (NWAdmin). They are to be used with the GroupWise API Gateway.
To install, make sure that there is a drive mapped to the SYS volume on the server. Extract the files to a temporary directory. Double click on the Install.exe program and follow the prompts.
After installing above, download the win32.zip file, and extract into the install dir.