Use FlightGear.sln to compile fgfs executable for Win32 or x64 architectures with Visual Studio 2008.

Precompiled librairies and headers for compiling x64 executables with VS2008 :
ftp://ftp.ihg.uni-duisburg.de/FlightGear/Win32/MSVC/fgfs-x64-VS90-3rdParty+OSG-20090628.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-20090628.zip