There's a way to use windows scheduler to execute your scripts similar to how one would do it via CRON on a UNIX system.
There's more info at
ActiveState aspn site
Example from the site:
at 23:37 /interactive /every:M,T,W,Th,F,S,Su cmd /c "c:\perl\bin\perl.exe c:\test.pl"
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"We've all heard that a million monkeys banging on a million typewriters will eventually reproduce
the entire works of Shakespeare. Now, thanks to the Internet, we know this is not true."
Robert Wilensky, University of California