Maybe the best thing that you could do, and what I would do, is to talk to the Powers That Be who have decided that "Perl is a non-approved tool" and maybe even get someone from Informatica to talk to them as well about why Perl is non-approved and why Informatica considers it worthy of being their extension language?

I have worked with both Perl and Informatica, but not "together", although it shouldn't be too hard, the external -program calls from Informatica work fine with shell scripts. The basic utility of Perl that I see in this situation is as a complex filter.

As for the proprietary and open-source together approach, it only really becomes a problem, as I see it, when you intend to distribute, and I suspect that you don't.

Share and Enjoy!

"That that is, is... for what is that but that? and is but is?" Shakespeare, Twelfth Night, Act IV, Scene 2

"Yet THAT which is not neither is nor is not That which is!" Frater Perdurabo (pseud. Aleister Crowley), Liber CCCXXXIII, The Book of Lies