Xp firewall rules on server 2008

Installing a network version of Treetops comprehension software, installed to central point on server with shortcut on desktops, at first run the firewall box pops up to unblock Flashex.exe. I've set inbound rules on server 2008 which works for the windows 7 machines. Is there anyway to set exceptions for the XP clients?

In the machine GPO, I think its Computer Settings > Admin Templates > Network > Network Connections > Windows Firewall > Domain Profile : "Windows Firewall : Define inbound program exceptions"