So, uh, seeing that running VMs increases CPU Heat and all, is it safe to run it on a 8 year old P4 2.0 GHz Processor with only 512 DDR2 RAM? And regarding this CPUIdle thing, on their website, it says "You can try CpuIdle for 30 days. If you come to the conclusion that you want to use either program after that time you must register". If I can't pay their 30$ fee, would I still be able to use it after 30 days? If not, should I stop using a VM? And which VM really is the best for running Win98SE and Win2k? (no need for ME/NT/other versions) Additional questions: Where SHOULD I install CPUIdle? My main OS or the VM OS? And how do I transfer files from the PC to the VM?