Adprep was unable to add the application-defined HandlerRoutine function that handles CTRL+C and other signals. Status/Consequence ...

Adprep was unable to add the application-defined HandlerRoutine function that handles CTRL+C and other signals.
[Status/Consequence]
Adprep has stopped without making changes.
[User Action]
Fix the problem and run adprep.exe again. Check the log file ADPrep.log in the %1 directory for possible cause of failure.