Compilation error
a14490c2-2841-4600-b96e-4fe9e9f9849e
a14490c2-2841-4600-b96e-4fe9e9f9849e(1): catastrophic error: could not open source file "windows.h"
  #include <windows.h>
                      ^

compilation aborted for a14490c2-2841-4600-b96e-4fe9e9f9849e (code 4)

What's wrong in #include <windows.h>? Why this lib not including on timus.ru?