I am running a dual boot system with Win 7 64bit and XP 32bit.

I WOULD NOT try to do this without seperate hard drives on each OS. And i definitely wouldn't add Win 98 and add a seperate hard drive just for this. Most games for 98 will run on XP.

My son set it up using EasyBCD and it didn't work properly. He ended up having to wipe all hard drives and start over. Not recommended.

I now have 3 hard drives with Win7 64bit on C, XP 32bit on D, and storage on E.

Options for dual boot come up during startup. Works great.

If you try to do a dual boot on one hard drive, most likely it will screw up your computer. I've been running variations of dual boot for years but it's always been on multiple drives

Bob