经典的文件透明加解密程序，以及xefs.dat规则生成程序。-Classic transparent file encryption and decryption procedures, as well as rule generation procedures xefs.dat.

Simple Packet Filtering Firewall Developed a firewall for Windows2000 Features: Start Stop Block All Block Ping Allow All Add Rule View Registered rules Technology used: Packet Filtering

本系统分成四个模块，包含一个应用层可执行文件(.exe)，四个内核层驱动（.sys），一个规则库数据库文件（.mdb），请保证六个文件在同一目录。-The system is divided into four modules, including an application layer of the executable file (exe), four core layer drive (sys), a rule database file (mdb), please ensure tha