Normally when you want to include a predefined header file in your program it is done like this
#include<[I]nameof headerfile.h[/I]>Whereas if you want to include user defined header files you do it by
#include"[I]name of headerfile.h[/I] "This will make the compiler to look for your header file where your main CPP file is present.
I hope that this solves your problem