Take a look at Crypt::License on CPAN. I used it a couple years back to do exactly what you are trying to do. It encrypts your Perl source code and then decrypts it on the fly. There is a slight overhead for the decryption, but if running under mod_perl, that should be negligible since it would only need to decrypt on apache startup.
Ironically, I set it up for a company who was trying to enforce payment by their customers, and then the bastard didn't pay *ME* for part of my work. (I was an independent contractor) Anyway.. HTH, -Adi On Sun, 20 Feb 2005 02:48:30 -0500 Chris <[EMAIL PROTECTED]> wrote: > Greetings, > > We would like to provide a software package that uses mod_perl that clients > can rent from us, which gets installed on their machine. We would like to > build some type of license checking, but considering its easy to tamper with > perl code what options do i have? > > We would like to be able to "lock out" clients who may skip on the rental > bill, etc. > > We cannot host this for them either. > > Thanks! > >