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Service Hints & Tips

Document ID: SSCT-3JKAJJ

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Error message "Incorrect DOS Version" appears during installation

Applicable to: World-Wide

Problem:
The CD-ROM device driver will not install and the following error message is displayed: "Incorrect DOS Version".

Configuration:
IBM CD-ROM Drive
IBM DOS Device Driver Version 1.00 or 1.01 (Option Diskette 1.00 or 1.01)
MSCDEX.EXE Version 2.2
Microsoft or IBM DOC Version 5.00

Explanation:
The IBM CD-ROM DOS file system translator, MSCDEX, performs a DOS 'Version Check' of its Operating System. The IBM DOS or MS-DOS Version 5.00 is not listed in the translator (MSCDEX.EXE), therefore an error is displayed during Bootup. The version check can be corrected by the procedure outlined under 'Fix'.

Application Software->

<-DOS->

<-MSCDEX.EXE & Device Driver->

<-SCSI Adapter->

<-CD ROM

MSCDEX.EXE translates DOS fixed disk parameters to CD-ROM compatible files and Vice-Versa, as illustrated above. CD-ROM option diskette Version 1.00 or 1.01 will work with systems running DOS. Diskette Version 1.01 is required for systems running OS/2.

Problem Isolation Aids:
None.

Fix:
At the command line, type in the following:

SETVER <DRIVE> MSCDEX.EXE 4.00

The SETVER command will instruct DOS 5.00 to respond to the MSCDEX.EXE Version check with DOS 4.00. all the other command and version checks will remain the same.

Note: <DRIVE> = Drive and Directory where DOS 5.00 is located.

	Search Keywords
	Hint Category	CD-ROM Drives
	Date Created	05-12-95
	Last Updated	25-01-99
	Revision Date	18-11-2001
	Brand	IBM Options
	Product Family	CD-ROM/Optical Drives
	Machine Type	2X CD-ROM, 4X CD-ROM, 6X CD-ROM, 8X CD-ROM, 10X CD-ROM, 16X CD-ROM, 20X CD-ROM, 24X CD-ROM, 32X CD-ROM
	Model	All
	TypeModel
	Retain Tip (if applicable)	H083356
	Reverse Doclinks and Admin Purposes