title: PE file sections alignment
body: <p>Why there is an alignment between section in PE file? Since the exact size of section can be specified in IMAGE_SECTION_HEADER.SizeOfRawData i don't see any sense of using these "gaps" between section.</p>
  
  <p>In MSDN documentation for key /filealign there is written: "Valid values are 512, 1024, 2048, 4096, and 8192". Is there some reason why /filealign:0 is forbidden by compiler?</p>