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Microsoft KB Archive/101170

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Promise Technologies IDE Controller Cards and DoubleSpace

Article ID: 101170

Article Last Modified on 11/19/1999


  • Microsoft MS-DOS 6.0 Standard Edition
  • Microsoft MS-DOS 6.2 Standard Edition
  • Microsoft MS-DOS 6.22 Standard Edition

This article was previously published under Q101170

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.


The Promise Technologies model 4030VL VESA local-bus-cached IDE controller card and the model DC200 ISA-cached IDE controller card both need a firmware update to run properly with the MS-DOS 6.0 DoubleSpace disk- compression program.


There are three EPROMs for the model 4030VL controller card. Check the last four digits of the EPROM number. If the last four digits are 203E, 203O, or 203X, the card is compatible with DoubleSpace. The latest revisions as of 6/20/93 are as follows:


The model DC200 controller card also has three EPROMs. If the number on the EPROMs is P20103E, P20103O, or P20103X, the card is compatible with DoubleSpace.

For more information, contact Promise Technologies.

The products included here are manufactured by Promise Technologies, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: 6.00 6.20 hang hung lock 3rdparty

Keywords: KB101170