The problem was that it was encoded so I coun't read the source what I want to be able to do before I trust it.
So I began to decode it. My happiness disappaired right after it. The code is 1 big mess and leaks are everywhere. Even SQL injection was a possibility and SQL injection is waht everyone can do even people without real PHP knowlenge.
After testing how secure it was I let someone else install it and make a admin password. after some hours I was able to login as admin with some spoofing methods.
After some time is became well known on the internet because more people decoded it.
a. By accepting this EULA you are agreeing not to reverse engineer, decompile, or disassemble the Software Application, except and only to the extent that such activity is expressly permitted by applicable law notwithstanding this limitation.
b. You are the exclusive licensee of the Software and sharing any source code of the Software with any individual or entity is a violation of copyright laws and international treaties and cause for license termination.
c. Modifying any portion of the Software source code or asking any individual or entity to modify the Software source code other than Total Online Solutions, Inc. is a violation of copyright laws and international treaties and cause for license termination.
Edit: Does someone have 3.6.x running btw? How is it? and what are the addons?
Just when I thought whmcs was the one to get then I read this:
http://www.webhostingtalk.com/showthread.php?t=707635
Has anyone here had these issues?