Original DOS and Word for Windows source code

You may remember our discussion of the command-line interface and DOS in particular, as well as some of our discussions about Word, including its metaphorical design and the presentation/action language.

DOS!

The Computer History Museum, which is an insanely great place by the way, has just released, through an agreement with Microsoft Research, the source code to DOS and the original Word for Windows (version 1.1, actually). DOS is done mainly in Assembly, text, and binary, with Word mainly being developed in C with a smattering of other file types as well.

It will be difficult to interpret, it's even hard for me to parse it all, but it is very informative to see what went in to these early programs that helped us get to where we are now.