AmigaOS 4
Bee GNU/Hurd
Commodore International/Carl Sassenrath
Debian
Debian GNU/kFreeBSD Gentoo/FreeBSD
Debian GNU/NetBSD
DragonFly BSD
FreeBSD
GNU/Hurd
HelenOS
Inferno
L4
Linux
Mac OS X
Minix 3
NetBSD
Nexenta OS
Novell NetWare
OpenBSD
OpenDarwin GNU/Darwin
Plan 9 from Bell Labs
ReactOS
Solaris Operating System,
SunOS
Windows NT, 2000,
XP, 2003, Vista
