Windows PE 文件在 DOS 下运行一般会显示：This program cannot be run in DOS mode. 这是PE文件头部的一个"dos stub"程序，这个就是"dos stub"的源码,我们可以修改它,用fasm.exe编译,在vc连接时,加上 /stub:stub.exe-Windows PE files will normally be run under DOS shows: This program cannot be run in DOS mode