Verify WinXP product key

[aldente]

Hello!

I wonder if there's a FAST way (several keys per second) to check if a WinXP key could be valid.

I currently enter them in in the Bluelist-keygen and verify them using an automated tool, but that is not a really good solution.

I'll be glad for any advice!

Why don't you use the functions exported from PIDGEN.DLL? The parameter meaning is quite simple and it will even decode the key to a serial, so you can not only verify if the key is valid but even what serial number it will produce. (but not every part of the serial is stored in the key)