Installing PHP 5.2.4 on IIS

[KevinM1]

I'm trying to install PHP onto a Windows XP Pro laptop, but it's been giving me issues.  What I've done so far:

 

1. Installed IIS from my Windows XP Pro CD

2. Downloaded the 5.2.4 installer from PHP.net

3. Ran the installer, with the 'No web server' option

4. Changed the cgi.force_redirect setting to 0 in the php.ini file

 

I tried setting the environment variables/paths, but it appears as though the installer automatically configured that for me.

 

I'm now at the step where PHP.net says that:

The IIS user (usually IUSR_MACHINENAME) needs permission to read various files and directories, such as php.ini, docroot, and the session tmp directory.

 

But I don't know how to change those user permissions.  All I do know is that I cannot view a simple PHP test file on localhost yet.  Please help.