... It appears that just like the DOS packages of long ago you NEVER want a simple number. DOS 4.0 was buggy and bad. DOS 4.1 was a keeper.
MS-DOS 4.0 ***June 1988*** MS-DOS 4.01 ***December 1988*** (Wikipedia) 29 years of living on the bleeding edge. Savage! Check back in 6 months. ;-)
