WAdium
WAdobe Atmosphere
WAltacast
WGNU arch
WBackupPC
WCelestia
WClip Studio Paint
WUlead Systems
WCPU-Z
WD (programming language)
WELinks
WFileZilla
WFLAC
WGNOME Files
WGnumeric
WGoogle Earth
WGoogle Images
WHALion
WIconBuilder
WInternet Explorer 6
WITunes
WLunascape
WMac OS X 10.0
WMac OS X 10.1
WMessenger Plus!
WMicrosoft Office XP
WMilkDrop
WMovable Type
WOpen Journal Systems
WOpticks (software)
WProcess Explorer
WProcessing (programming language)
WProject64
WPsi (instant messaging client)
WRhythmbox
WScummVM
WSharePoint
WApache SpamAssassin
WStellarium (software)
WTeamSpeak
WTitan (game engine)
WTurboTax
WVLC media player
WVoodoo Chat
WWindows XP
WZ-Wave
WZabbix