   Quick link error
  I am getting this link error, and I really dont know why. The engien compiles fine, but the app, returns the error on compilation.1>Linking...1>engine.lib(Engine.obj) : error LNK2019: unresolved external symbol __imp__NxCreatePhysicsSDK referenced in function "public: __thiscall Engine::Engine(struct EngineSetup *)" (??0Engine@@QAE@PAUEngineSetup@@@Z)1>.\Debug/Test.exe : fatal error LNK1120: 1 unresolved externals1>Build log was saved at "file://c:\Documents and Settings\HP_Administrator\Desktop\Source\Chapter 10\Test\Debug\BuildLog.htm"1>Test - 2 error(s), 0 warning(s)========== Build: 0 succeeded, 1 failed, 1 up-to-date, 0 skipped ==========This is the source:gPhysicsSDK = NxCreatePhysicsSDK(NX_PHYSICS_SDK_VERSION);    if (!gPhysicsSDK)  return;Global:NxPhysicsSDK*gPhysicsSDK = NULL;I followed the instructions and the model, so I can't figure out what is wrong.   
  You need to add a .LIB to your linker parameters; in this case it will be one of the LIBs from Ageia's SDK. (I am unfortunately not familiar with this SDK so I can't tell you which one.)Just click on Project, Properties, Linker, Input and add the LIB file to the list in Dependencies. That should take care of it.   ;  In this case I believe the lib you're looking for is PhysXloader.lib. Which you would have found if you had done a search for "NxCreatePhysicsSDK LNK2019".   ;  thanks that did it   