How Do I Automate Finding Local Admins On XP Machines?

Hi – Thanks in advance for all help given.

I have been asked to gather information on our network as to which users are local administrators on their own PCs.

I am currently thinking the only way I can do this is to Manage My Computer, Connect to their computer using their IP address and then look in the Administrator Group under local users and groups.

This is a very manual and time consuming process. Can it be automated in any way?