[CNCRob]

I have a computer that I just loaded with DOS 6.22 because my control software requires it. Now I can't access my Cd-Rom, I get an invalid drive error when I try. I know it works because I just had Windows 98 on it before I reformatted it and loaded it with DOS and the Cd-Rom worked fine. I could use any advice you may have. Thanks-Robbie

[DieGuy]

does the config.sys and autoexec.bat have any drivers loaded?

[abasir]

You need the CDROM driver in config.sys file:
DEVICE=CDROM.SYS .... or something similar. If not available, search the net for generic driver.

Then you need the CDROM dos extension line in AUTOEXEC.BAT:
MSCDEX.EXE .... or something along this line.

Or just go to http://www.bootdisk.com and find a suitable boot disk there

[CNCRob]

Hey guys,
Thanks for your replies. Im not to experienced with DOS. Can I edit the config.sys and AUTOEXEC.BAT file and add those lines or do I need to do something more, Thanks-Robbie

[ger21]

You can just edit them and type in the lines.

[abasir]

Off course making sure the additional files are there Just adding the statements without the actual files won't change anything (except given error messages)

[CNCRob]

If I do need the files, Do I just find them on the internet and copy them to the hard drive. Thanks for all your quick answers.

[DieGuy]

If I do need the files, Do I just find them on the internet and copy them to the hard drive. Thanks for all your quick answers.

bootdisk.com will have them. If I remember correctly there image contains everything you will need.

[fyffe555]

IF you have windows 98 the win98 startup disk has the generic cdrom driver together with the changes you'd need to make to the autoexec bat and config sys,

[CNCRob]

I tried adding the lines and I got the error message saying I needed the driver. I went to bootdisk.com and downloaded the bootdisk for DOS 6.22 and wrote it to a floppy. I was wondering would all I have to do is copy MSCDEX.EXE file to the hard drive or do I have to do something else? Thanks- Robbie

[Al_The_Man]

Copy MSCDEX.com to the hard drive or indicate where it is with the Path command.
This is another site that shows how http://www.pcguide.com/proc/setup/cddriver-c.html
Also go to the web site of the CD drive maker and see if there is a driver available.
Al.

[CNCRob]

I got my cdrom drive to work under DOS thanks to your guys help. It put the driver letter to R:. Is there any way to designate another letter like D: under DOS. If so how would I go about doing that. Thanks-Robbie

[DieGuy]

check in the autoexec.bat where the driver gets hooked, one of the options there is which drive letter.

[CNCRob]

Thanks again for the help. You all seem to know alot about DOS, I was wondering if there is anyway to automaticly start my controll software(which is CNCZEUS) when the computer boots. I have it stored on the hard drive and not the cdrom. Thanks again-Robbie

[Al_The_Man]

In your Autoexec.bat file, at the end, edit it to read:
CD C:\Cnczeus (the name of the directory where cnczeus is)
CNCZEUS ( or whatever the name of the program is)

[CNCRob]

I just wanted to thank everyone for your help. All of you helped me get the computer working just the way I wanted it to. Thanks- Robbie