To be honest, the reducemem sccript isn't all that useful in my opinion. sure, it can reduce the current memory of WLM temporarily, but it requires its own memory to run. And with the .NET framework, really you aren't gaining much, if anything. If you really want this script, there is a better alternative. I used it for a while, but didn't see much of a difference.
CookieRevised's reply to Reduce MEM