well, from the little that i know the only thing i could say is, if you want to run the script in win32 that you got from a *NIX system, then the shebang doesn't matter since you name the file with a .pl ext and windows uses that to determane that its a perl script. so you could keep the original shebang from the previous system unalterate and the script would still work.
And for any other ideas, you'll have to ask some one else, I'm no expert.

jjdraco
learning Perl one statement at a time.