title: reduce the size of executable visual studo 2017 community
body: <p>I am trying to reduce the size of my executable to ~20k , and I am copiling without symbols , debuing info. I also added runtime library /MD , but I after execute it on windows 7 , 8 or xp it says msvcp140-dll error visual c++ 
  main.cpp</p>
  
  <pre><code>#include "class.h"
  #pragma comment(lib,"ws2_32")
  </code></pre>