4DOS
(重定向自NDOS)
4DOS is a command line interpreter by JP Software, designed to replace the default command interpreter COMMAND.COM
in DOS and Windows 95/98/SE/ME. The 4DOS family of programs are meant to replace the default command processor. 4OS2 and 4NT replace CMD.EXE
in OS/2 and Windows NT respectively. 4DOS was written by Rex Conn and Tom Rawson; it was first released in 1989. These programs can also be initiated from the command line and/or called by scripts.