DOS EXE Format
   Information about the DOS EXE Format (also known as the MZ format).
   http://www.delorie.com/djgpp/doc/exe/

Portable Executable and Common Object File Format Specification
   The format specification for Portable Executable (PE) and Common Object File Format (COFF). (Microsoft)
   http://msdn.microsoft.com/library/specs/msdn_pecoff.htm