遗漏了N多东西，比如你导出的send函数，没有转到真正系统dll的send函数上。

谢谢，我想问一下：
怎么看出send没有正确转到？下面一句
#pragma comment(linker,"/export:send=syswsock32.send,@19")
其中syswsock32.dll是系统原来的ws2_32.dll，这样不就是转到了么？

你要连接，你不想要转connect这类函数么？

问题是现在我先不管自己要做的处理，我就是把所有函数都转向syswsock32.dll，但是都会造成无法联网

你这个根本没转向

请问问题出在哪里了？

高手来解答一下~~

虽然不懂，但看了一下，你似乎是没有转向，你只是导出了函数，我这有份delphi的劫持，你参考一下：

uses
Windows;

{$R *.res}

var
ModHandle: Cardinal;
POldCheckUPdateValid: Pointer;
POldGetDogError: Pointer;
POldGetRegionAndCode: Pointer;
POldQZUPdateValid: Pointer;
POldReadRegisterData: Pointer;
POldReadRegisterData2: Pointer;
POldWriteRegisterData: Pointer;
POldWriteRegisterData2: Pointer;

procedure CheckUPdateValid; asm jmp POldCheckUPdateValid end;
procedure GetDogError; asm jmp POldGetDogError end;
procedure GetRegionAndCode; asm jmp POldGetRegionAndCode end;
procedure QZUPdateValid; asm jmp POldQZUPdateValid end;
procedure ReadRegisterData; asm jmp POldReadRegisterData end;
procedure ReadRegisterData2; asm jmp POldReadRegisterData2 end;
procedure WriteRegisterData; asm jmp POldWriteRegisterData end;
procedure WriteRegisterData2; asm jmp POldWriteRegisterData2 end;

exports
CheckUPdateValid,
GetDogError,
GetRegionAndCode,
QZUPdateValid,
ReadRegisterData,
ReadRegisterData2,
WriteRegisterData,
WriteRegisterData2;

begin
ModHandle:= LoadLibrary('D:\Weway\GraspFzxw+\DogRW.dll');
if ModHandle > 0 then
begin
   POldCheckUPdateValid:= GetProcAddress(ModHandle, 'CheckUPdateValid');
   POldGetDogError:= GetProcAddress(ModHandle, 'GetDogError');
   POldGetRegionAndCode:= GetProcAddress(ModHandle, 'GetRegionAndCode');
   POldQZUPdateValid:= GetProcAddress(ModHandle, 'QZUPdateValid');
   POldReadRegisterData:= GetProcAddress(ModHandle, 'ReadRegisterData');
   POldReadRegisterData2:= GetProcAddress(ModHandle, 'ReadRegisterData2');
   POldWriteRegisterData:= GetProcAddress(ModHandle, 'WriteRegisterData');
   POldWriteRegisterData2:= GetProcAddress(ModHandle, 'WriteRegisterData2');
end;
end.

SPI可以实现你想要的,gg下