You cant read the source code of the files when encrypted.

Encrypted code is usually done with the Zend Encoder.

According to the product page, "the code is both obfuscated and encoded, making it virtually impossible to reverse engineer."

Personally I think the idea of encrypting PHP code for such things as vBulletin hacks, or any PHP script/snippet that is free is quite pointless. I can see a product costing a good deal of money to maybe being PHP encrypted, but only if the product is not expected to be configured and tweaked by customers--otherwise, if it was something like vBulletin and was encrypted, who the hell would buy it? (well, not those wishing to put their own innovation into their forum).

Its really up to the user, i'm not forceing anything on anyone..

Its exact duplicate, Its really up to the user... :)

Nekio - the best one.
But why Zend? I've got no Zend and can't get it working.
What part of the code have you encoded? A?!

Just to let you know i think its hololith :P