OLE-util-register-only? () => register?
<boolean>.
Note: Not applicable to in-process servers.
Returns #f unless the application's first command-line argument is any of /RegServer, -RegServer, /UnregServer or -UnregServer. The comparison of the command-line arguments with these strings is not case-sensitive.
If the result is not false, the server application should just call register-automation-server and exit without doing anything else.