cPanel is largely written in Perl and relies upon it to function. You can see which version of Perl is installed by using the -v switch:
Code:
$ perl -v
This is perl, v5.8.8 built for i386-linux-thread-multi
Copyright 1987-2006, Larry Wall
Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.
Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl". If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.
Are you perhaps asking about mod_perl? Normally, mod_perl is not built into Apache on a cPanel server, but it can be built in using EasyApache. Also, EasyApache will build mod_mono, which supports ASP.NET but not classic ASP.
If you can give more details about what exactly your sites require, we may be able to give you more specific guidance.