I want to find out how much space particular files types are taking up on certain drives. For example if I had a drive called Drive C i would like to see how many excel files (in mb/kb) are on there or how many system files are on there. I could search for a certain file type and then count the file sizes but this would take ages. Im sure I used to have a free piece of software that did this but cant for the life of me think what it was called. Can anybody help on this? Need to do this on XP, Vista and server 2000 os's.