Sorry for my delay in responding. I was on vacation.
While all of the above suggestions are fine at the user or workstation level, if you want to implement this security system-wide there is a much easier way of doing it.
1. In ConsoleOne select the Domain, Post Office, or User you would like this to apply to.
2. Click the Tools->GroupWise Utilities->Client Options menu item.
3. Click the Security icon.
4. On the Password tab deselect Allow password caching. This will prevent the "Save Password" checkbox from being clickable on the login prompt.
5. If you wish, you can also deselect Allow eDirectory authentication instead of password to prevent users from using that option too.
Hope that helps. It should make your job easier because you won't have to visit each computer to modify the shortcut or the client options.
-Ron
We all play from the same deck of cards, it's how we play the hand we are dealt which makes us who we are. -Me