Installing and upgrading help

Welcome to Moodle... I know nothing about Windows so can't help you much there but just to say, please try to keep your subject lines relevant

Having installed PHP on Windows with IIS 7.5, the PHP documentation is a great place to start:

http://php.net/manual/en/install.windows.iis7.php

Joseph,

What have you done so far to setup PHP?

if you are new to setup php on IIS, then I would recommend easier part, using web platform installer, it will download and install all necessary files for you, add handler mappings and setup environment variables.

if you want to go manual way, then again not an issue, less than 5 mins work.

Make sure when installing IIS, you have selected CGI to be installed as well.

You'll be downloading Non-thread safe version from php.net, and extracting contents into with program files or even root directory. (its upto you weather to download 32-bit or 64-bit)

Secondly, go into Environment variables, and add the lines C:\php (after semi colon) or C:\program files\php --> depending upon where you have extracted the folder

go into IIS manager, you'll find handler mappings  there, you'll be adding information about PHP, so click Module mappings (from right hand menu), and type following

Request path : *.php

Module: FastCGI

executable: C:\php\php-cgi.exe (depending upon where your php folder is)

name: give any that you can come later to, like Php-5 etc

in default files, add index.php as well, and you'll be good to go.

again a reminder, WPI will make your job much easier.