Hi every1...my friend needs help with an Os problem...he has a laptop with VISTA loaded on it....he doesnt want to format the hard drive.....he has a project which needs win 2000 unfortunately.....so i how he install win 2000 on vista ?....i heard that there is something called virtualization..where u can load another os within a OS thru VMWare...can some1 help as i have never done this yet..thanks:hap2: