Article: Q126236
Product(s): Microsoft Home Kids Products
Version(s): 1994 edition
Operating System(s):
Keyword(s):
Last Modified: 26-MAY-2001
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The information in this article applies to:
- Microsoft Encarta 1994 The Complete Multimedia Encyclopedia
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SYMPTOMS
========
When you click on a doorway in the Microsoft Encarta 1994 edition of MindMaze,
you may receive the error:
Sub Or Function Not Defined
The error seldom occurs if MindMaze is executed directly from File Manager.
CAUSE
=====
The problem has been observed with several Compaq Presario computers with
internal IDE CD-ROM drives. The CD-ROM driver in the Config.sys file is
Cpqidecd.sys. These Compaq CD-ROM drives are apparently not being cached
properly by SMARTDrive.
RESOLUTION
==========
NOTE: The following instructions discuss editing your Autoexec.bat file. For
more information about how to edit your Autoexec.bat file, see your MS- DOS
manual. If you are using Windows 95, use online Help to find the topic "editing
unformatted text files".
1. Disable CD-ROM caching by adding the /U switch to the Smartdrv.exe line in
the Autoexec.bat file. For example, change the Smartdrv.exe line to:
"C:\WINDOWS\SMARTDRV.EXE /U" (without the quotation marks)
For more information about Smartdrv.exe, consult your Microsoft MS- DOS
manual. Systems running Microsoft MS-DOS 5.0 and 6.x can access comprehensive
information about MS-DOS commands by typing "help" (without the quotation
marks) at the MS-DOS command prompt. In Windows 95, you can enter "smartdrv
/?" (without the quotation marks) at the MS-DOS prompt.
2. Increase the number of CD-ROM buffers to 20 by editing the line containing
Mscdex.exe in the Autoexec.bat file. Increase the number after the /M: switch
to 20. If this switch is not present, add /M:20 to the line containing
Mscdex.exe.
For more information about Mscdex.exe, consult your Microsoft MS-DOS manual.
Systems running Microsoft MS-DOS 5.0 and 6.x can access comprehensive
information on MS-DOS commands by typing "help" (without the quotation marks)
at the MS-DOS command prompt.
3. Save your changes and restart the computer.
MORE INFORMATION
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Smartdrv.exe
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The Smartdrv /U option does not load the CD-ROM caching module of SMARTDrive even
if you have a CD-ROM drive. If SMARTDrive is loaded with the /U switch, you
cannot enable CD-ROM drive caching.
Mscdex.exe
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The Mscdex /M: option specifies the number of sector buffers used to cache the
path table of a CD. Typically, each drive should have a minimum of four to five
buffers. The larger this number is, the less your computer will have to read
directly from the CD-ROM drive.
The Compaq Presario computer is manufactured by a vendor independent of
Microsoft; we make no warranty, implied or otherwise, regarding this product's
performance or reliability.
Additional query words: 1994multi media multimedia multi-media mmtitles encarta mindmaze compaq cdrom hardware
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Keywords :
Technology : kbHomeProdSearch kbEncartaSearch kbEncartaEncycSearch kbEncartaEnCyc1994
Version : :1994 edition
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