Microsoft KB Archive/98525

= Com 4 Not Available on AST Premium Exec Notebook Computer =

Article ID: 98525

Article Last Modified on 11/22/1999

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APPLIES TO


 * Microsoft MS-DOS 6.0 Standard Edition
 * Microsoft MS-DOS 6.2 Standard Edition
 * Microsoft MS-DOS 6.21 Standard Edition
 * Microsoft MS-DOS 6.22 Standard Edition

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This article was previously published under Q98525



SUMMARY
According to AST, COM 4 will not be available on the AST Premium Exec 3/25 SLC Notebook computer unless you properly load the AST CCU.EXE driver in the CONFIG.SYS file.



MORE INFORMATION
The CCU.EXE driver configures COM 4 for the PCMCIA Card (an AST credit-card size Ethernet/modem card). The driver must be loaded in conventional memory. The upper memory area (UMA) D000-DFFF must be excluded when using the PCMCIA Card in conjunction with the CCU.EXE driver. Include the following device entries in the CONFIG.SYS file:   DEVICE=C:\CCU.EXE DEVICE=C:\DOS\HIMEM.SYS DEVICE=C:\DOS\EMM386.EXE [RAM | NOEMS] X=D000-DFFF If you MS-DOS MemMaker with aggressive scanning of upper memory settings, HIGHSCAN will be added to the EMM386.EXE device line in the CONFIG.SYS file. If COM 4 is not recognized on the AST Premium Exec after loading HIGHSCAN, run MEMMAKER /UNDO, and then rerun MemMaker with conservative settings.

The PCMCIA Card is manufactured by AST, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

For more information, contact AST.

Additional query words: 6.22 6.00 laptop 3rd party third-party third 6.20

Keywords: KB98525

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