MS-DOS 5.00 first version sold RETAILFred,I have to
respectfully disagree here. 3.20 was sold in retail. It was packaged in the dark blue
packaging which was the norm for MS at that time (after the green packaging of earlier
products).? I have a copy sitting up on my shelf (in fact I have both 3.20 and 3.21). 4.00
seems to be in the grey oem package but not necessarily branded (i.e. a generic rey box
included with new system purchase) . I have not seen anything MS retail before 3.20.-Ali