|You don't need that line in 98 or 98SE unless you need to be able to use the CD drive in MsDos mode , e.g. for Dos programs or games, and it's a Compaq CD drive.|
Windows auto installs it's own driver for IDE CD drives otherwise.
If you don't need to use the IDE drive for that...
Start - Run - type: sysedit (click OK or press Enter)
Either - if you're not sure - insert: rem, a space, at the beginning of that line
or - delete the line
File - Save (in Config.sys).
You won't get that error while booting from then on.
If you DO need to be able to use an IDE drive in MsDos mode...
CPQIDECD.SYS is an older IDE CD drive driver for a Compaq brand CD drive
You may be getting the error
- because the file CPQIDECD.SYS is not present in C:\Windows\System,
or because you no longer have a Compaq CD drive and that driver doesn't work with the IDE drive you're using.
If you need to be able to use an IDE CD drive in MsDos mode change the line to
OAKCDROM.SYS works for almost all IDE CD drives.
The label IDECD001 must be the same as in the line for mscdex in Autoexec.bat