说明：  DSock 是一个基于DOS 实模式的TCP/IP 库，对于计划在DOS 系统下编写Internet 程序的DM&P 产品用户，该产品是非常适合的。DSock 提供简单的C 语言函数，利用这些函数，程序员可以编写Internet程序。
(DSock is a real mode DOS-based TCP/IP library, and plan for the DOS system to prepare procedures for the DMP Internet user of the product, the product is suitable. DSock simple C language function, the use of these functions, programmers can write procedures Internet.)