看来楼主想加密解密.rar文件了
能看懂zh159兄的这段代码就ok了
@if not exist "%~f1" (@echo File doesn't exist!&@goto :eof) else (echo exit|cmd /kprompt e100 FF FE 20 20 32 3E 6E 75 6C 0D 0A 63 6C 73 0D 0A $_rcx$_10$_n t12.5$_w$_q$_|debug>nul&&@copy/b t12.5+"%~f1" "%~dpn1"_encrypt.bat>nul&&echo Successful!&del t12.5)
http://www.cn-dos.net/forum/viewthread.php?tid=35997&fpage=2###