I am trying to make some php code available via USB key, as well as
having the following features

1) Uses firefox portable (done it!)
2) encrypted/encoded/obfuscated as much as possible
3) installable to the user's hard disk

For step 1 it was easy, but as I posted a few days ago I've been
checking out a lot of these encoder products, and zend guard does seem
the most advanced, but I can't see any evidence that anyone has
managed to properly set up it's "loader" library so that users can
actually use the software. So I'm trying Ion cube, according to
http://www.server2go-web.de/wiki/phpencrypt

But has anyone managed to make a server2go package be installable to a
user's computer? I am thinking of using another Ion product, but I
wonder if there are any other options known to work with server2go?

Thanks,

Alejandro