Hi there is a few ways you could go. But everything needs a Win9x install CD
1: ) Use something like VMware or qemu, I don't really use this option
2: ) Another Idea, is to install Win9x on dosbox, I wrote tutorial here:
http://vogons.zetafleet.com/viewtopic.php?t=26973. It's a bit more tricky to use, and not all software run.
3: ) A dedicated old machine, I've got a old P2 200mhz with 98se, and use it mainly to play old games
4: ) A modern machine running LINUX and have Wine installed (thus no Win9x needed)