I stand corrected
Well, it appears that Microsoft has a product that does this and allows MANY different OSs at the same time. Another interesting thing about it is that it is not severely overpriced like most MS products. It is only $129.00 or $119.00 at amazon.com. It is called Microsoft Virtual PC 2004. For Linux, there is another alternative WORTH looking at. It is Win4Lin and it is downloadable for $89.99 or boxed for $99.99. However, this product ONLY works for Win 95/98/Me.