Use FlightGear.sln to compile fgfs executable for Win32 or x64 architectures with Visual Studio 2008. Previous versions of Visual Studio are not officially supported anymore. Precompiled librairies and headers for compiling x64 executables with VS2008 : ftp://ftp.ihg.uni-duisburg.de/FlightGear/Win32/MSVC/fgfs-x64-VS90-3rdParty+OSG-20100501.zip Precompiled librairies and headers for compiling Win32 executables with VS2008 : ftp://ftp.ihg.uni-duisburg.de/FlightGear/Win32/MSVC/fgfs-win32-VS90-3rdParty+OSG-20100501.zip The VS2008 / v9.0 project files assume the directory layout below : Win32 build : * any_directory_on_any_drive / 3rdParty / ( includes plib, fltk, zlib, libpng, libjpeg, libtiff, freetype, libsvn, gdal, ... bin / include / lib / boost_1_39_0 / boost / source / ( Flightgear CVS directory - It can also be renamed FlightGear or anything else src / projects / VC90 / Win32 / ( generated at build time Debug / ( Debug executable Release / ( Release executable FlightGear.sln ( Main solution utils / install / msvc90 / OpenSceneGraph / ( OSG CMake install bin / include / lib / SimGear / ( SimGear CVS directory simgear / projects / VC90 / 3rdParty, boost_1_39_0 and install/msvc90 are included in the Win32 3rdParty archive. x64 build : * any_directory_on_any_drive / 3rdParty.x64 / ( includes plib, fltk, zlib, libpng, libjpeg, libtiff, freetype, ... bin / include / lib / boost_1_39_0 / boost / source / ( Flightgear CVS directory - It can also be renamed FlightGear or anything else src / projects / VC90 / x64 / ( generated at build time Debug / ( Debug executable Release / ( Release executable FlightGear.sln ( Main solution utils / install / msvc90-64 / OpenSceneGraph / ( OSG CMake install bin / include / lib / SimGear / ( SimGear CVS directory simgear / projects / VC90 / 3rdParty.x64, boost_1_39_0 and install/msvc90-64 are included in the x32 3rdParty archive.