Not sure how many of you utilize utilities that are designed to unclutter and speed up Windows in terms of processes running, registry errors, etc....
There is a relatively cheap program called SpeedUpMyPC and Registry Booster by Uniblue.
I recently installed these on my Mac running Virtual Machine running Win XP SP3 and L4 has a much better feel. I would not say it is like adding another chip to the motherboard, but it is smoother in launching things and nothing seems to hang it up for more than a few seconds at a time.
You may want to try it. I am interested in others who have tried these utilities and if they have noticed L4 performance changes.