Anyone for DOS? Word 1.1a?

Microsoft has dusted off the source code for early versions of MS-DOS and Word for Windows and with the help of the Computer History Museum are making this source code available to the public for the first time.

The museum has done an excellent job of curating some of the most significant historical software programs in computing history. As part of this on-going project, the museum will make available two of the most widely used software programs of the 1980’s, MS DOS 1.1 and 2.0 and Microsoft Word for Windows 1.1a, to help future generations of technologists better understand the roots of personal computing.

http://www.computerhistory.org/atchm/microsoft-ms-dos-early-source-code
http://www.computerhistory.org/atchm/microsoft-word-for-windows-1-1a-source-code