Installation on Windows 95/98/NT systems

This install guide will help you install and configure PHP on your Windows 9x/NT webservers. This guide was compiled by Bob Silva. The latest revision can be found at

This guide provides installation support for:

General Installation Steps

The following steps should be performed on all installations before the server specific instructions.

The DLLs for PHP extensions are prefixed with 'php_'. This prevents confusion between PHP extensions and their supporting libraries.

Windows 95/98/NT and PWS/IIS 3

The recommended method for configuring these servers is to use the INF file included with the distribution (php_iis_reg.inf). You may want to edit this file and make sure the extensions and PHP install directories match your configuration. Or you can follow the steps below to do it manually.

WARNING: These steps involve working directly with the windows registry. One error here can leave your system in an unstable state. We highly recommend that you back up your registry first. The PHP Development team will not be held responsible if you damage your registry.

PWS and IIS 3 users now have a fully operational system. IIS 3 users can use a nifty tool from Steven Genusa to configure their script maps.

Windows NT and IIS 4

To install PHP on an NT Server running IIS 4, follow these instructions:

Windows 9x/NT and Apache 1.3.x

You must edit your srm.conf or httpd.conf to configure Apache to work with the PHP CGI binary.

Although there can be a few variations of configuring PHP under Apache, this one is simple enough to be used by the newcomer. Please consult the Apache Docs for further configuration directives.

To use the source code highlighting feature, simply create a PHP script file and stick this code in: <?php show_source ("original_php_script.php"); ?>. Substitute original_php_script.php with the name of the file you wish to show the source of. (this is only one way of doing it). Note: On Win-Apache all back slashes in a path statement such as: "c:\directory\file.ext", must be converted to forward slashes.

Omni HTTPd 2.0b1 for Windows

This has got to be the easiest config there is:

Repeat steps 2 - 6 for each extension you want to associate with PHP.

PHP Modules

Table 2-1. PHP Modules

php_calendar.dllCalendar conversion functions
php_crypt.dllCrypt functions
php_dbase.dllDBase functions
php_dbm.dllGDBM emulation via Berkely DB2 library
php_filepro.dllREAD ONLY access to filepro databases
php_gd.dllGD Library functions for gif manipulation
php_hyperwave.dllHyperWave functions
php_imap4r2.dllIMAP 4 functions
php_ldap.dllLDAP functions
php_msql1.dllmSQL 1 client
php_msql2.dllmSQL 2 client
php_mssql.dllMSSQL client (requires MSSQL DB-Libraries
php3_mysql.dll (Built into PHP 4)MySQL functions
php_nsmail.dllNetscape mail functions
php_oci73.dllOracle functions
php_snmp.dllSNMP get and walk functions (NT only!)
php_zlib.dllZLib functions