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Definition: double space


(1) See double spaced.

(2) (DoubleSpace) A real-time compression capability built into DOS 6 that generally doubled the disk capacity. It was not automatic; users had to run the program to do it. Due to a patent lawsuit won by Stac Electronics, publisher of the Stacker compression product, Microsoft dropped DoubleSpace in Version DOS 6.21. In DOS 6.22, a different method was included and later used in Windows 95 (see DriveSpace).