TCAdmin is a very good game control panel for windows game servers.
If your dedicated server is running under a Linux OS, there is a lot of alternative to TCAdmin, such as my own FREE & OPEN SOURCE game panel called "Bright Game Panel" (doughnet mentioned it previously in this thread).
Currently it is in beta stage but within some months, I hope it will be ready for production ; I have released version 0.3.0 today ;-)
Are there still any active development on your panel? I like it's graphical interface but I'm a little worried about the serious vulnerabilities that easily gives a hacker (or a legitime customer for that matter) full access to your server box.