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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

SYS0039
 
Explanation
 
One of the following errors occurred:
 
1. The drive is empty.
2. The drive door is open.
3. The drive is in use.
 
 
Action
 
Do one of the following:
 
1. Insert a diskette in the drive and retry the command.
2. Close the drive door and retry the command.
3. Wait until the drive is available and retry the command.