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out of date.
SYS0033
SYS0033Explanation
One process has locked a portion of the file, and a second process has
attempted to use the same portion of the file.
Action
Retry the command later.