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out of date.
SYS1810
SYS1810Explanation
The process ended when it tried to divide a number by zero.
Action
Correct the problem or try a different version of the program.