Microsoft KB Archive/103554

= Running MS-DOS-Based Games with DoubleSpace =

Article ID: 103554

Article Last Modified on 12/2/1999

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APPLIES TO


 * Microsoft MS-DOS 6.2 Standard Edition
 * Microsoft MS-DOS 6.22 Standard Edition

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This article was previously published under Q103554



SYMPTOMS
This information applies to both Microsoft DoubleSpace and Microsoft DriveSpace. For MS-DOS 6.22, use DRVSPACE in place of DBLSPACE for commands and filenames.

Some MS-DOS-based games may not display video output correctly when the DoubleSpace component (DBLSPACE.BIN) is loaded.



CAUSE
The DoubleSpace decompression code requires the buffer it is reading into to be readable so that it can scan back for expanding repeated strings. Some games read directly into video RAM, which is not guaranteed to be readable.



WORKAROUND
To work around this problem, install your MS-DOS-based games on your uncompressed host drive. Then, when you start MS-DOS, press CTRL+F5 or CTRL+F8 when the "Starting MS-DOS" prompt is displayed to start your computer without loading DBLSPACE.BIN.

Additional query words: 6.20

Keywords: KB103554

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