[tanzam75]

I doubt it.

I mean, Adobe also released the source code for an old version of Photoshop. So old that it didn't even have layers. It didn't signal anything about the release of source code for say, Flash Player.

And look at which version of Word they released -- 1.1. Not even 2.0, because 2.0 was the version where it became mainstream.

Microsoft has already released a lot of source code that's a lot more useful than DOS and WinWord. For example, the .NET Framework Reference Source.