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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
SYS1200
SYS1200
 
Explanation
 
DOS mode initialization failed. The specified error code was returned by a
DOS function while the system tried to create DOS mode.
 
Action
the error. Correct the problem and restart the system.