W86-DOS
WBASIC interpreter
WDR-DOS
WCHIP-8
WChoice (command)
WMS-DOS
WMultiuser DOS
WMultiuser DOS
WMultiuser DOS
WMultiuser DOS
WMultiuser DOS
WMultiuser DOS
WMultiuser DOS
WMultiuser DOS
WCopy (command)
WDBase
WDel (command)
WDR-DOS
WAtari Portfolio
WDir (command)
WDOS Plus
WDR-DOS
WDR-DOS
WDR-DOS
WDR-DOS
WFind (Windows)
WFreeDOS
WGEM (desktop environment)
WHelp (command)
WIBM PC DOS
WMachine code monitor
WMove (command)
WMS-DOS
WMultiplan
WMultiuser DOS
WNet (command)
WDR-DOS
WDR-DOS
WDR-DOS
WPEEK and POKE
WPRINT (command)
W86-DOS
WRen (command)
WReplace (command)
WCP/M-86
WMS-DOS
WMS-DOS
WSuperCalc
WTIME (command)
WTiny BASIC
WTitle (command)
WFM Towns
WTYPE (DOS command)
WVer (command)
WVisiCalc