IFRFlightLog records flight information from your active Flight Simulator flight automatically in 1 second intervals. Recorded information are: Zulu time Altitude IAS TAS GS VS Latitude Longitude Course Fuel flow Fuel on  board IFRFlightLog can be launched with Windows™ system start up or manually  by user before or after Flight Simulator start up. IFRFlightLog starts  recording automatically with engine start up and  stops recording when engines are shut down. When recording has stopped the user will be asked whether he wants  saving the data. Flight data are saved redundantly  as: a text file (*.csv) for evaluating with  a spread sheet program like Excel™ a binary file (*.ilg) which can be evaluated with a special IFRPlan function (Menu: Flightplan/Evaluate  FlightLog) Important: IFRFlightLog requires the addition of a freeware program called  FSUIPC, by Peter Dowson. FSUIPC, among its other  uses, allows third party software to interface with Flight Simulator. FSUIPC does not come with IFRFlightLog but it can be downloaded from any well stocked flight simulation web site, or from the following site: www.schiratti.com/dowson.html All you have to do is to download FSUIPC and to copy the file FSUIPC.dll into the MODULES folder off your main Flight Simulator folder, for example: …\FS2000\MODULES or …\FS2002\MODULES