Leeches from mcbouner.com which is a global banning system. I'd leech it from MCBans but they use images for Minecraft usernames (to prevent applications like these, xD)
Minecraft Username Leecher
Because having a lot of usernames is fun
What is this?
This is a simple java application designed to leech Minecraft usernames. I don't care what you do with it but it isn't my responsibility for what you do with it.
It automatically saves the list to...
MySQL doesn't have anything to do with it.
I ask for you to check any javaw.exe processes because you of already clicked the jar file instead of the batch file.