HowToInstallIis5OnWindows7PHP Installation on Windows systems. PHP 5. 2. 9. 2 Install on XP Pro IIS 5. Testing Date  0. Background For several days now I, as a newbie, have been unsure if I had installed PHP correctly, or not. No matter what I did phpinfo reported Configuratin File Path as  C WINDOWS. I was left to wonder what was wrong. To help resolve the phpinfo issue, I conducted a series of tests using two scripts The first is test php ini loaded. Loaded php. ini. A php. The second script is simply calls phpinfo. It is named test. My Dev Environment 1. Windows XP Pro SP3. How To Install Iis 5 On Windows 7' title='How To Install Iis 5 On Windows 7' />Introduction You can use Microsoft Web Platform Installer Web PI to easily install Internet Information Services IIS and applications that run on IIS. IIS 5. 1 MMC 3. PHP 5. My. Admin not yet installed. My. SQL 5. 1, etc. Install location is on my local E drive. The Tests Test 1 a. PHPRC environment variable and Ini. How To Install Iis 5 On Windows 7' title='How To Install Iis 5 On Windows 7' />File. Path Registry left in place and activeb. Verified no other copies of php. E PHP folderc. Renamed php. Stopped and started IIS net stop iisadmin and net start w. Ran test php ini loaded. It is not. f. Ran test. Loaded Configuration File was empty, while Configuration File php. Path showed  C WINDOWS. Test 2 a. Moved php. E PHP to C WINDOWSb. Stopped and started IISc. Ran test php ini loaded. It is not, which surprised me. Ran test. php.   My php. Configuration File php. Path reports it as being in C WINDOWS. Note  Per PHPs The configuration file note, PHPs search order includes  Windows directory C windows or C winnt for Windows,. Loaded Configuration File. Test 3 a. Left the solo copy of my php. C WINDOWSb. Disabled PHPRC environment variable by renaming it to Ex PHPRC and saving the settings note for this test  I left the Registry entry for PHP Ini. File. Path intactc. Stopped and started IISd. Ran test php ini loaded. Predictably it is not found. Ran the test. php. Again, my php. C WINDOWS though Configuration File php. Path reports it as being there. Test 4 a. To be thorough and eliminate all possible sources of mis direction I deleted the PHP Ini. File. Path Registry entry after backing up the Registry. Ftdi Linux Drivers. Ipl 7 Auction. The PHPRC environment variable was left disabled. Stopped and started IISc. Ran test php ini loaded. Predictably it is not. Ran test. php.   Again, no change. My php. Configuration File php. Path reports it as being there. Conclusions The first conclusion I came to is that, in the default download version of phpinfo, Configuration File php. Path is hard wired to report C WINDOWS whether php. Further, that C WINDOWS is not a default search location at least not on XP. However, given an otherwise proper setup, phpinfo reporting C WINDOWS as the value for Configuration File php. Path is merely misleading and is not actually harmful or indicative of a failed installation. Thanks go to Peter Guy of www. Daniel Brown of www. P. S.   This note is not meant to take anything away from PHP. It is a fine tool. The sole purpose of the testing was to confirm that my installation of PHP was correct. Learn how to add a Web Server feature to your Windows 7 computer called Internet Information Server IIS.