Sorry. That just doesn't make sense. CGI.pm is included in all recent (from 5.0 onwards, I believe) perl distributions. Even if it isn't included (at which point you should fire your sysadmin) you can still use it.
You should take a look here. You can always use CGI.pm.
Don't give a 'what if'. Tell us what you need to do that is similar. You need to parse QUERY_STRING in a 'similar' way? Maybe you want to URI decode the string, CGI.pm does that (and other modules, too). Use CPAN, grasshopper.