Hey IBM, I found one of your threads on another forum (winworld) Now I have this release but also another I decided to do a compare, lots of differences but one that caught my eye .. Disk6 - WRITE.EXE The version in the set you posted as genuine contains this at offset 2D82F of WRITE.EXE: "version 1.03" The version I compared it to contains this at offset 2D82F: "version 1.04" So the SHA1's you declared are either an earlier release or a beta? I also found some spelling mistakes in a text file the newer one had corrected. You say you verified this so any comment? Curiously, the set you verified .. the boot sector was created by IBM DOS 3.2 ("IBM 3.2"), the set I have was created by MS-DOS 3.0 ("MSDOS3.0"). Could we be looking at some form of OEM vs. Retail? I have same issue with Windows 1.01, 2 sets the files in this case on the disks are identical however .... just the disks formatted / prepared on a different OS. Any thoughts?