I'm running a batch to access a file on a CDROM, Not from a DOS box but from Real mode DOS. But I can't get the path to CDROM right. I've tried every variation on this command: %CDROM% cd \DOS710 cd \DOS710\HDUtils cmenu.exe exit It won't go to %CDROM% nor %CDROM%:\ Everyone wants a faster PC

hi Can you see the CdRom buy typing it's drive letter. ie d: e: f: ect. Whats in the environment variable %CdRom% type "set" or "echo %CdRom%" to see what it contains. You need the drive letter of the CdRom in order to run the CMenu.exe file from another drive ie. d:\cmenu.exe from another drive, or change to the drive by typing it's letter ie. d: CMenu.exe

Thanks for your reply, Problem is this: Dos is loaded from CDROM, path is set to a folder on CDROM, and I can call batches from DOS that are in the path (on CDROM). THOSE CALLED BATCHES however, cannot call other batches or executables due to an invalid path. I can manually navigate to CDROM, and run the batches instead of calling them from A:\1stbatch, and when I do, they'll find their respective call batches and executables. Only when I'm at the A:\ prompt and run batch1 that calls batch2 on cdrom is the path invalid. I use a menu system that calls batches in the environment path, and it works; called batches try to run other apps and it doesn't work - Invalid path returned. ("fileshigh" in config.sys is more than sufficient to run the called apps) As I said, if I manually navigate to the called batches folder and run the batch, it'll find and run the executable. I'm puzzled.??? Everyone wants a faster PC

Yes, but what value does %CDROM% have? Expert: someone who reads the manual when no-one's looking

Hi As Rambler said whats in %CDROM% You could change the path od the Environment variable in your first batch file. ie. set CDROM=d: set CDROM=d:\Dos70 or set Path=%path%;d:\Dos710;d:\710\HdUtils you can use the Path with or without the "Set "