use dosbox. u can find a link to the site on sourceforge at tah main site: utilities/programs. it works. Lemmings only freezes after I played 5 lvls. just restart it if that happens. just dont forget to write down tah passwords in case of a freeze. it returns to the main menu but the tape below doesnt move and the keys dont have any effect anymore. windows-key minimizes it rightclick/close youll be fine.
k: