一个mini抓包发包程序 我利用pcaplib for windows写的一个抓包发包程序Captx for Win2k/Winnt/Win9x， 仅110K，跑起来占内存2M，附有VC源代码，大家有什么特殊需要可以自己修改代码。 使用方法： （1）把整个CapTx目录拷贝到自己的硬盘上 （2）安装packet capture drivers v2.02(Captx\\drivers下的相应目录，在网络中添加协议后，选磁盘安装) (3) 启动CapTx.exe (4) 点抓包按钮开始抓包，用单选按钮可以选择转包后的输出格式是详细的还是简单的， 详细的包格式如下： 00000000： FF FF FF FF FF FF 00 45 00 47 00 48 00 08 45 00 .......e.g.h..e. 简单的包格式仅有中间的部分 （5) 该包存到一个跟应用程序相同的目录中的一个log文件中。 (6)往编辑框中填如下所示的包字符： ff ff ff ff ff ff 00 b0 d0 d0 b0 d8 08 06 00 01 08 00 06 04 00 01 00 b0 d0 d0 b0 d8 c0 a8 00 01 00 00 00 00 00 00 c0 a8 00 c9 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 就可以发送一个ARP包了。 （7）该程序由于由源代码，所以你可以根据你额需要随便修改成自己想要的抓包/发包功能。-a mini capturing Packet letting process I use for windows pcaplib wrote an capturing Packet letting process for Win2k/Winnt/Win9x Captx only 110K, running together for 2M memory, with VC source code, you have any special needs can modify the code themselves. Use : (a) the entire CapTx catalog copy of their hard drive (2) Installation of packet capture drivers v2.02 (Captx \\ drivers under the corresponding directory, the network added to the agreement, the election disk installation) (3) activated CapTx.exe (4 ) of capturing Packet capturing Packet button to begin using radio buttons can choose to subcontract the output format is detailed or simple, detailed packet format is as follows : 00000000 : FF FF FF FF FF FF 00 45 00 47 00 48 00 08 45 00 ....... e.g.h.. e. simple packet format only