• CGI? That's even older than ASP, you cannot write my webapp in it!
• Does Perl support session?
• I can let you try to code at most 20% of my webapp(you can't code the whole site with Perl, apparently), but make sure it can share session with ASP.NET.
• What's needed to run your Perl?
• Is there anything Perl can do better than Java?
• Does Perl have business value?

Like Damian said in this interview: …