[rsilva712]

Ahh, gotcha, no problem here on 8.1 pro 64bit running 4 clients. Now, he says it shows C but not D, and then closes the second launcher (B?). Sounds to me like B and C have the same key and it crashes each other? idk.. Maybe try deleting the cfg files in your mmominion folder so that you need to reenter the keys and make sure you dont have a duplicate? Or try a fresh minion install on a different folder