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out of date.
Device I/O Error
Device I/O Error
You used the File menu's Print command, and MS-DOS
Help could not create the file you specified.
For example, you may have tried to print:
■ To a write-protected share on a network.
■ To a read-only file.
■ With too many files open.