If I put the function in FsuipcData.vb in the window log each time timer makes loop I have Strobes lights, etc populate my window log.  So I need to place pmdg737sdk() in FrmMain.vb to avoid crash but now I have information only when Get flight I give you some files if you can look please. ------------------------------------------------------- I would like make function for displaying GS, TAS, Mach, Fuel Flow in Real-Time Flight Information How can do that? Thanks