Hi Jason,
The compilation is Ok but the linkage display this error !?

error LNK2001: unresolved external symbol "public: void __cdecl XPC::Timer::stop(void)" (?error LNK2001: unresolved external symbol "public: void __cdecl XPC::Timer::start
....
1>..\XPlaneConnect\64\win.xpl : fatal error LNK1120: 2 unresolved externals
1>Done building project "xpcPlugin.vcxproj" -- FAILED.

Have a nice day,

Thank you