I sometimes run just Workbench 1.3, but I really only do it to play with the SAY program.
I think the 1.3 Speech sounds a little different then the last version on 2.04 Workbench. 2.04 is better quality I think, but the one on 1.3 is the one I remeber playing with when I was younger.
Making it say bad words is sooo much fun