Hi Paul, I have take your sample from SDK with your Latest dll and have error with : 1) FSInstallationPath return nothing 2) getActiveRunwayForNearbyAirport() return nothing 3) FSUIPCConnection.AirportsDatabase.Load() just after FSUIPCConnection.Open() return me Exception can't connect   Imports FSUIPC Imports System Imports System.Collections Imports System.Drawing.Drawing2D Imports System.Windows.Forms Imports LockheedMartin.Prepar3D.SimConnect.SimConnect Imp