Hi,

you need the module IO::ALL, which explains the error message.
Read A Guide to Installing Modules or A guide to installing modules for Win32 for module guidance.
However you may want to check out File::Find for this sort of work.

Also I notice that this is your first post (as a registered user).
Welcome! I think it would be worth while having a read at the PerlMonks FAQ if you have not already done so.

Hope this helps

Martin