Well, my experience with DOSEMU was basically that I tried to run it, and it bitched at me that it didn't have a proper version of DOS available to it for it to work properly.
Then I read the instructions for it, it told me how to get it installed and working properly, then I got it up and running. Then I realized that I was using DOS and I deleted it
Sorry, but a quick Reading of The Fine Manual should tell you everything you need to know. ;D