Microsoft KB Archive/81774

= SUBST Command Doesn't Work with CD-ROM Drive =

Article ID: 81774

Article Last Modified on 5/12/2003

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APPLIES TO


 * Microsoft MS-DOS 5.0 Standard Edition
 * Microsoft MS-DOS 5.0a
 * 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 Q81774



SYMPTOMS
The following error message will appear when attempting to use the MS-DOS SUBST command with a CD-ROM drive:

Cannot SUBST a network drive

The MS-DOS SUBST command does not work on CD-ROM drives.



CAUSE
CD-ROM drives are connected to a computer via a network interface. The MSCDEX.EXE CD-ROM driver informs MS-DOS that the CD-ROM drive is a network drive.

