There are a few ways to go about it. I used Partition Magic to create a partition, stuck in the 2000 CD while in Win98SE, ran the 2000 setup directing it to install to the partition that I made, and had the dual boot system going with no problem. There are other ways, but I found the way I did it easy, since I already have Partition Magic, and use it often to create and resize partitions without having to FDISK, format and reinstall stuff.