I just followed the instructions on the manual install of PHP5 on to a Windows IIs6 box using ISAPI not CGI. At first I had problems with getting a username/password box when trying to access a php file through a web browser, now i've got that cleared up by adding the username to the php and inpub directories.

Now when i go to the page with the browser I get "Service Unavailable" I've searched Google, and this board and can't find any help yet. Any ideas?

thanks,

    a month later

    I had the same problem you were having and had no idea what the problem could be. I found that I had to change the "Predefined" value under the "Identity" tab under "App Pools"->"DefaultAppPool". I changed the value from "Local System" to "Local Service" and this seemed to solve the problem. Hope it works for you.

    Thanks,
    Erik

      3 years later

      Hi,
      Just to confirm, I was experiencing the same problem, changing the default app pool identity resolved the 'Service Unavailable' problem after a PHP install - the setup was Win2k3 x64 and PHP64 from FusionLAN - it was working after the initial install, but after changing IIS to run in 32-bit more for testing before reverting back to 64-bit mode the error occured. Hope this helps someone else along the way!

      Thanks for the info 🙂

      Stuart

        we all know its the permission in the app pool. this thread is resolved.

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