Realia Spacemaker

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File Format
Name Realia Spacemaker
Ontology
Released 1982?

Realia Spacemaker (or just Spacemaker) is an executable compression utility for DOS, developed by Realia. It was possibly the first executable compression utility for DOS to be released.

It compresses COM files (to COM), and EXE files (to EXE or COM).

Contents

Identification

(Only versions 1.03 and 1.06 have been evaluated.)

Compressed COM files apparently start with bytes 9c 55 56 8c cd 83 c5, and have ASCII "MEMORY$" at offset 18.

Compressed EXE files apparently have 9c 55 56 8c cd 83 c5 at offset 512, and ASCII "MEMORY$" at offset 530.

Software

Sample files

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