SEAL GUI
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SEAL (also called XSeal [1]) is a 32-bit graphical user interface for DOS. SEAL requires at least an Intel 80486, 8mb of RAM (although it may be possible to run SEAL on less, doing so is not recommended), a video card supporting 640x480 with 256 colors, 1.6mb of hard drive space, MS-DOS 3.0+ or equivalent (DR-DOS, PC-DOS, FreeDOS).
SEAL is licened under the GNU GPL.
SEAL hasn't been under development since 2003. The last release, 2.0.11, came out 2002-04-11