Which is how I got my five copies, natch. Alas, the sim sold poorly, and M$ employees were given stacks of the boxed set to give away just to get them out of the warehouse. The Atlas one was to be John Glenn's flight, which would have been very welcome. There was an expansion set in the works when this came out that would add a Mercury-Atlas, a Soyuz booster, and one of the early Nova designs - probably the 'Saturn 8' - with scenarios for each. After this, everything M$ developed only ran on some form of Windows. This sim has a major place in computer history: it was the last program Micro$oft released that was a DOS-specific program.