I'm pretty sure your format is correct, ie: @ errorlevel -(something)

-306 didn't seem to work.

I'm still getting a Results window on compile. In my case:

C:PROGRAM FILES (X86)\PBP3_1\DEVICES\PIC16F18324.PBPINC (486) MSG: HPWM command only supports CCP channels (not PWM channels).

and

C:PROGRAM FILES (X86)\PBP3_1\DEVICES\PIC16F18324.PBPINC (487) MSG: PPS-Int available. See file PBP_PPS_notes.txt

Its not that the messages are a hindrance, its that they bring up the window on the bottom that obscures an inch or so of the bottom of the program that I'm trying to debug. Just another step to close it with each iteration while working on the code.

bo