MS-DOS
MS-DOS v1.10
MS-DOS v2.11
MS-DOS v3.2
MS-DOS v3.3
MS-DOS v4.01
MS-DOS v5.00
MS-DOS v6.20
MS-DOS v6.21
MS-DOS v6.22
MS-DOS v6.22 RUS
PC-DOS
PC-DOS v1.1
PC-DOS v3.3
PC-DOS v4.0
PC-DOS v5.0
PC-DOS v7.0
PC-DOS 2000
OS/2
OS/2 v1.0
OS/2 v1.1
OS/2 v1.2
OS/2 v1.31
OS/2 v2.0
OS/2 v2.1
OS/2 v3.0
Windows 16-bit
Windows 1.01
Windows 1.02
Windows 1.03
Windows 1.04
Windows 286
Windows 2.03
Windows 386
Windows 3.0
Windows 3.1
Windows 3.11 WG
Windows 3.11 RUS
Windows 32-bit
Windows NT 3.5 Server
Windows NT 3.5 WS
Windows NT 3.51 Server
Windows NT 4.0 WS
Other
Miraculix
DELL MS-DOS v3.30
CP/M-86 v1.0
DR-DOS v7.03
Flop OS
ROM-DOS v7.1
PTS-DOS v7.0
PTS-DOS 2000
RxDOS