OpenGEM is a non-
multitasking 16-bit graphical user interface (GUI) for
DOS. It is an extended distribution of FreeGEM that includes features of the original
Digital Research GEM. OpenGEM is intended to provide a simple to install and use GUI system and windowing framework for the
FreeDOS operating system. Caldera Thin Clients (later known as
Lineo), who owned the source code to GEM through
Caldera's purchase of the remaining Digital Research assets from
Novell on 23 July 1996, released the source to GEM under the terms of
GPL-2.0-only in April 1999. OpenGEM was developed by Shane Martin Coughlan in collaboration with the FreeGEM Developer team, and is
free software released under the terms of the
GPL-2.0-only. OpenGEM versions 3 through 6 are hosted on SourceForge and on the FreeDOS website. OpenGEM has not been actively developed since 2008 but is feature-complete as a basic GUI and includes a full SDK for future third-party development or extension.
Compatibility OpenGEM works with
FreeDOS Beta 9 and above,
DR DOS 5.0 and above,
MS-DOS 3.3 and above,
PC DOS 3.3 and above,
REAL/32, and
DOSBox 0.65. OpenGEM will function on
Windows 95,
Windows 98,
Windows 98SE, and
Windows ME. It is not known to work with
Windows NT,
Windows 2000 and
Windows XP or later. == See also ==