此为ZLib最新版本1.2.5。原作是用C编写的，在VC++、BC++或C++Builder中自然很容易直接使用，对于Delphi开发者，虽然Delphi自带了ZLib的移植版本(zlib.pas)，但版本为1.0.4，而且必须要使用Borland自己编译生成的zlib.dcu（当然，在完整版的光盘中包含了编译好的zlib库的.obj文件和c代码，后继版本修改了大量的bug，并较大幅度地提升了性能。

此源码为编译好适合Delphi的版本。-This is the latest version of ZLib 1.2.5. The original is written in C, in VC++, BC++ or C++ Builder is very easy to direct the use of natural, for the Delphi developer, although the transplant Delphi version comes with ZLib (zlib.pas), but version 1.0.4, and must be compiled using Borland own generated zlib.dcu (of course, in the full version of the CD-ROM contains the compiled zlib library. obj file and the c code, and subsequent versions of amended a number of bug, and more significantly enhance performance. This source code is compiled for the version of Delphi.