I have same problemn, I have few bots for sell but I can't because I can't protect. TJ stop post and go to work, all are waiting you . In other post I ask for a code to check mac-adress. Whit this you can compile a unique bot for every client. Or you can put mac-adress in txt file on your server and compare.Now, how you can do this? I have a virtual server but I don't know how read a file, I am using dropbox to share files.