Some of the alternative versions support features not present in the vanilla version such as APM power off, direct parallel port passthrough for printing, and support for East Asian characters. The focus of the vanilla version is on gaming, and features such as support for Ctrl-Break may be missing. There are versions available on the DOSBox website that support long filenames, at the cost of possible compatibility with some older programs. Otherwise, they will be aliased to follow the convention. In the vanilla version, long filenames are not supported because DOS does not support them, filenames must follow the 8.3 naming convention, with a maximum of 8 characters before the full stop, followed by up to 3 characters for the file extension. The DOSBox project aims to be fully compatible with all DOS programs, and tries to replicate the experience as accurately as possible. For ease of use, several graphical front ends have been developed by the user community. ĭOSBox is a command-line program, configured either by a set of command-line arguments or by editing a plain text configuration file. The project was first uploaded to SourceForge and released for beta testing on July 22, 2002. The two knew of solutions at the time, but they could not run the applications in windowed mode or scale the graphics. The development of DOSBox began around the launch of Windows 2000-a Windows NT system -when its creators, Dutch programmers Peter Veenstra and Sjoerd van der Berg, discovered that the operating system had dropped much of its support for DOS software. MS-DOS continued to receive support until the end of 2001, and all support for any DOS-based Windows operating system ended on July 11, 2006. Although Windows XP could emulate DOS, it could not run many of its applications, as those applications ran only in real mode to directly access the computer's hardware, and Windows XP's protected mode prevented such direct access for security reasons. A member of the series is Windows XP, which debuted on October 25, 2001, to become the first consumer-oriented version of Windows to not use DOS. Conversely, the Windows NT operating systems were not based on DOS. These versions of Windows could run DOS applications. Windows 3.0 and its updates were operating environments that ran on top of MS-DOS, and the Windows 9x series consisted of operating systems that were still based on MS-DOS.

Before Windows NT 3.0, consumer-oriented versions of Windows were based on MS-DOS.

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