Auto login?

So I managed to setup everything properly and everything is now working for ISBoxer. Instead of manualy write in every username and password, is there any way to make it auto login to every account? I know it's possible for retail but I couldn't find anything on Google for private servers.

No private servers don't have any launchers like blizzard has.
Enable key maps (default, Shift + Alt + M) and write password.
If you want to use different passwords, just write small script that send passwords to different wow windows.