Hello Paul, I don't understand how I can use PMDG offsets in VB.net. I know dand I have read two PDF talking about those offsets I would like check AP, taxi lights, navigation lights and strobe lights.   6545 1 BYTE MCP_annunCMD_A Boolean 6547 1 BYTE MCP_annunCMD_B Boolean 6564 1 BYTE MAIN_annunAUTO_BRAKE_DISARM Boolean 6500 1 BYTE LTS_PositionSw 0: STEADY 1: OFF 2: STROBE & STEADY 6501 1 BYTE LTS_AntiCollisionSw Boolean 64F4 2 BYTE x 2 LTS_LandingLtRetractableSw[2] 0: RE