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out of date.
SYS1010
SYS1010Explanation
The number of lines in a file cannot exceed (file size + 768) / 4.
Action
You can reduce the number of lines in the file or split the file into
smaller files. Then retry the command.