Important Notice

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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

If you encounter this error when running your program,
a FILES, KILL, NAME, OPEN, PRINT, or RUN statement refers
to a file that does not exist.
 
If you encounter this error when starting QBX or when
opening a file in QBX, you have a PWB .MAK file with
the same base filename as your source file. Rename
the PWB .MAK file.
 
ERR code 53