THIRD RAIL » Memcached based message queues
http://3.rdrail.net/blog/memcached-based-message-queues/ Blog pots shows and explains how to implement simple queue system on top of memcached
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Win32::Daemon - Extension enabling Win32 Perl scripts to be a service - search.cpan.org
http://search.cpan.org/~daveroth/Win32-Scheduler_v20000702/lib/Win32/Scheduler.PM#Example:_Install_the_service perl module to run perl as Win32 service