The FatalExit function transfers execution control to the debugger. The behavior of the debugger thereafter is specific to the type of debugger used.
VOID FatalExit(
| int ExitCode | // error code | 
| ); | 
This function does not return a value.
An application should only use FatalExit for debugging purposes. It should not call the function in a retail version of the application because doing so will terminate the application.