比较2进制文件(EXE,DLL等)异同的方法

有时候，需要比较EXE,DLL文件，虽然重新编译了，或者只是版本修改，但是其实内容没有变化。

参考http://support.microsoft.com/kb/164151/en-us

The time and date stamps can be removed from the built image without removing relevant information (code and data) using the /RAWDATA switch available in the DUMPBIN utility. Any file compare utility can then be used on the DUMPBIN output as follows:
DUMPBIN /RAWDATA MyApp.EXE > first.txt

If Myapp.exe is built again at a different time, then use DUMPBIN as follows:
DUMPBIN /RAWDATA MyApp.EXE > second.txt

You can now compare first.txt and second.txt using a file compare utility like:
FC /B first.txt second.txt