in reply to How to copy files to a new directory, and invoke gzip from Perl on Win32?

You might want to name your folders with a date which sorts nicely too:
2007-04-28 2007-04-29 2007-04-30 2007-05-01
Instead of:
01-05-2007 28-04-2007 29-04-2007 30-04-2007
and in answer to your question, you can use the system function in perl to run other executables like 'gzip.exe' and take a look at the rename function or the File::Copy module.