写本文的目的主要是回报一下引路人站长为大家写的两篇介绍在win9x下和linux下安装PHP4.04的文章。也希望能够给初学者一点点帮助。本文主要介绍PHP4.04及mysql3.22.34在英文win2000系统IIS下的安装。 文中所汲及的软件都可以在本站目下载。由于是回复引路人的文章，所以文章格式编排和它的相同，可不要以为是抄袭哟（当然也是有一点点啦，：））
....所需软件
·php4.04 win 32位安装程序
·mysql3.22.34 win 32位版共享版
第一步 下载所需程序，安装运行MYSQL3.22安装程序。
....下载包是一ZIP文件包需用WINZIP等工具解开，运行setup.exe安装，缺省安装目录是c:\mysql。将PHP4文件包解开到c:\php目录下。
第二步 安装数据库及php4。
.... 首先确定你的系统有没有安装IIS，如果没有那就先按下面的方法装IIS吧，：），Win200的professional版的安装盘中没有附带IIS，所以你首先要找到一张Win2000 Server版的安装盘，然后打开Control Panel，接着运行Add/Remove Programs 选Add/Remove Windows Components 安装Internet Information Services，然后根据提示Step By Step.OK，现在已经装好了IIS，下面进行PHP的安装
.... 解压后在PHP的目录下有如下文件
·php.ini-dist
·msvcrt.dll
·pws-php4.reg
·libmysql.dll
·php.exe
·php4ts.dll
·php4isapi.dll
·php_mysql.dll
.... 将所有dll文件copy 到你的system目录，如C:\WINNT\system32\下，注意哟，php.exe不是一个标准的可执行程序，所以你必须把那些DLL文件拷贝到system32
将php.ini-dist改名为php.ini
修改 extension_dir = ./
为 extension_dir = c:\winnt\system32\
修改 ;extension=php_mysql.dll
除去前边的";"号
在[mysql]栏下修改
mysql.default_port = 3306
mysql.default_host = localhost
mysql.default_user = root
这三栏原始参数为空。
复制php.ini 到c:\WINNT 目录下
然后再次打开Control Panel，打开Administrative Tools 运行 Internet Services Manager 在Web服务上点鼠标右键，选Properties，如图一所示：
图一
然后在弹出的窗口中选ISAPI filter，如图二所示：
图二
增加一个以PHP为名字，包含php4isapi.dll的子键，如图三示：
图三
接着在Home Directory中选Configuration，增加一个应用映射。如图四，图五所示：不过要注意哟要用php4isapi.dll 而不是php.exe! 
图四
图五所示
下面的就简单了，你只要重启一次iis服务就可以用PHP喽
第三步测试
....运行c:\mysql\bin\mysqld-shareware.exe启动数所库，或者用 c:\mysql\bin\mysqld-shareware.exe --install命令把mysql做为一项服务来加载。如果不想加载了可以用c:\mysql\bin\mysqld-shareware.exe --remove把mysql卸载下来。
.... 你也可以新建立一个php文件如下,然后IE下运行这个info.php文件，如果能够运行，这表明整个系统以能正常工作。
文件名 info.php
//查看系统状况 文件开始
phpinfo();?>
//文件结束
在IE中访问此页时你将得到有关PHP的运行资料.
注.本文中所有内容都在文中有关的平台上运行通过，不同的PHP版本可能会有所不同在WINNT下安装时php.ini及dll文件分别放在c:\winnt及c:\winnt\system32下.
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