msos2.hlp (Table of Contents; Topic list)
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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
SYS1981
SYS1981
 
Explanation
 
The device receiving the information has detected an error.
 
Action
 
Make sure that the device is working properly. If the device is a disk,
ensure that there is enough space available on the disk.