Shucks, that's not really what I had in mind.
I thought maybe you were using the downloadable version of the MBi to see if a player has a prior ban. I wasn't sure what you were using to database guids and aliases. Would be nice if we had a downloadable version of the MPi so we could have a program like yours that has all players names in it as well as any bans they might have. That way a program can run in the background, and when a player with a ban comes in, a sound goes off, kind of the way the old Raycaster name hacker worked. Guys you catch on your server but who have not been banned by punkbuster could then be added manually and shared. I really wish pbbans could implement something like this in the Hub Live.