The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
SYS1815
SYS1815Explanation
The Identifier entered is not recognized by OS/2 as a device.
Action
Check the device name, or spelling and retry the command.