restricting the windows headers

WIN32_LEAN_ANDN_MEAN and the other simular restraint

what exactly to they limit and is

Code:

---

#define VC_EXTRALEAN
#define WIN32_LEAN_AND_MEAN

---

correct..?

They don't do anything to your program size, they just speed up compilation. Look in windows.h if you want to know exactly what's excluded :)