Hi to all experts

I need to deploy a patch for all Outlook 2003 users within my organization.
However,
before I send out the packages, I need to ensure all users of Outlook 2003
had been patched to SP2.

Is there any way to find out whether they are using Outlook 2003 Sp2 or not
by not bothering the users and ask them to find out what version of Outlook
2003 they are currently using.

Please kindly advise.