MS-DOS 1.29

According to MS-DOS 2.11 source code, MS-DOS 1.29 is an unreleased internal version of MS-DOS. At this stage of development, it is already clear that the next major release of MS-DOS is version MS-DOS 2.00 and it will differ significantly from the previous MS-DOS 1.25 release.

Change log
1.29 06/01/82 Installable block and character devices as per 2.0 spec 06/04/82 Fixed Bug in CLOSE regarding call to CHKFATWRT. It got left out back about 1.27 or so (oops). ARR