I am curious why you would think: "I believe I need to use ActivePerl 5.18 rather then 5.20 in Windows 2008 Server?". ActiveState only offers free downloads for their latest 2 revisions. I am not sure that you can even get 5.18 free anymore. I do run AS 5.20.2, 32 bit on my ancient Win XP laptop without problems. I don't see why it wouldn't work with Win 2008 Server, 32 bit unless there is some strange bug with Tomcat. My personal experience tracking the latest stable release from AS has been good (mileage varies). Others know more about Strawberry than myself.