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DOSBox is a free and open-source emulator which runs software for MS-DOS compatible disk operating systems—primarily video games. [5] It was first released in 2002, when DOS technology was becoming obsolete. Its adoption for running DOS games is widespread, with it being used in commercial re-releases of those games as well.
Virtual DOS machines can operate either exclusively through typical software emulation methods (e.g. dynamic recompilation) or can rely on the virtual 8086 mode of the Intel 80386 processor, which allows real mode 8086 software to run in a controlled environment by catching all operations which involve accessing protected hardware and forwarding them to the normal operating system (as exceptions).
The command session permits running various supported command-line utilities from Win32, MS-DOS, OS/2 1.x and POSIX. The emulators for MS-DOS, OS/2 and POSIX use the host's window in the same way that Win16 applications use the Win32 explorer. Using the host's window allows one to pipe output between emulations.
Tao ExDOS enables users of DOS applications to work with these applications on new operating systems. Using the built-in Virtual 8086 mode of the x86 CPU, Tao ExDOS enables DOS and 16-bit Windows applications (that run under DOS) to run effectively in 32-bit Windows desktop environments, including Windows 10/8/7/Vista/XP/2000 and Windows Terminal Server 2003/2008. [1]
86Box is an IBM PC emulator for Windows, Linux and Mac based on PCem that specializes in running old operating systems and software that are designed for IBM PC compatibles. . Originally forked from PCem, it later added support for other IBM PC compatible computers as we
Simulate a hardware environment over which DOS programs are accustomed to having control. Provide DOS services through native Linux services; for example, dosemu can provide a virtual hard disk drive which is actually a Linux directory hierarchy. [3] API-level support for Packet driver, [4] IPX, Berkeley sockets (dosnet). [5] [6]
VDMSound was an open-source (licensed under GPLv2) emulator of legacy sound card devices, designed to allow video games and other applications written for MS-DOS to run on the Microsoft Windows NT/2000/XP/95/98/Me operating systems. Its author is Vlad Romascanu. [1] [3]
DOS/32 has been commercially available since 1996. As of May 2002, it was released to the public in the form of "Liberty Edition" along with its complete source code under terms similar to the Apache License of the time, [a] allowing unrestricted, royalty-free distribution with certain provisions regarding reference to it in documentation and the naming of derived software.