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out of date.
SYS0037
SYS0037Explanation
You tried to write to a diskette, but it is write-protected.
Action
Make sure that the proper diskette is being used, or remove the write
protection. Retry the command.