"This script worked like a charm on *nix but the client's IIs server just has a fit. " This leads me to suspect specificly code that you changed to adapt it to the win32 environment... like your CONFIG section. I think you only want D:\\path\\name when you're in qq{} context (double-quotes); you only need D:\path\name in q{} context (single-quotes).

It's worth a try, at least. I think in q{} context, \\ still maps to \, thought a single \ is legal...

Thanks,
James Mastros,
Just Another Perl Scribe