pycron

http://www.kalab.com/freeware/pycron/pycron.htm

This is a nice tool to run cron jobs on windows. It uses py2exe

An article on how to use it
http://www.bigbluehost.com/article4.html

Another tool I’ve read was good:
http://www.nncron.ru/

Don’t use VisualCron (it doesn’t even know what a cron job is)
or CronW — it’s an ugly perl program.