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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

SYS1145
 
Explanation
 
The specified file is currently being used by another process or the
specified target file is read-only.
 
Action
 
If the file is being used by another process, wait for the process to
release the file. If the target file is read-only, retry the command with
the /R parameter.