Has anyone ever come acoss a list of the possible "Last Result" codes for the NT 4 Task Scheduler, specifically 0xc000013a?

I have scheduled a BATch job to run every morning, which works, but gives this last result code (and apparently leaves Yet Another copy of MSTASK.EXE visible in Task Manager / Applications - these only go away on a reboot...). Other scheduled BATch jobs leave this field completely blank, and presumably were even more successful!