PHP Installation - no isapi dll's on the download

Posted on 2005-05-08
Last Modified: 2013-12-13

I am trying to install the latest version of php on windows as an isapi module. The instructions refer to a file called php5isapi.dll in the sapi directory. I do not have this file. I have php5isapi.c, php5isapi.def and php5isapi.dsp.

Please can you advise what to do. I obtained the latest download from the

Thanks very much for your help
Question by:andieje
    LVL 10

    Accepted Solution

    You have download the source and not the distro package...

    Download this.... (core package)

    Download this... (PECL, added extensions)

    If you need a layout of directories just ask! If you ask include the Server you are using and the version of windows you are using! You can follow the PHP directions for installing but you should never install PHP extensions in to your OS SYSTEM folder. Keep things OS related a part from service type files. It will save you much time when you need to upgrade, but more importantly it will keep your system more secure.


    Author Comment

    Thanks very much

    I have downloaded the file you suggested and I will see how I get on :) Expect to hear from me!!

    Author Comment


    I am still having trouble. I seem to have php installed but now I can't install an extension.

    I have tried two ways:


    ini. file

    enable_dl = on
    extension dir = "c:\php\ext"
    ;extension=php_mapscript_44.dll    - the extension is commented out



    Error...Warning: dl() [function.dl]: Not supported in multithreaded Web servers - use extension=php_mapscript_44.dll in your php.ini in c:\Inetpub\wwwroot\php\test.php on line 5

    Method 2

    ini. file

    enable_dl = off
    extension dir = "c:\php\ext"


    Tried to access one of the functions in the extension directly
     $map = ms_newMapObj("C:\Inetpub\wwwroot\cgi-bin\maps\");

    Fatal error: Call to undefined function ms_newMapObj() in c:\Inetpub\wwwroot\php\test.php on line 6

    Please can you help
    Thanks very much

    Author Comment

    By the way my php is installed  as a module on IIS and i have restarted IIS everytime i change the ini file

    Author Comment

    I have now found out that the extension i was trying to use needs php installed as a cgi not as a module so i have changed that.

    My ini file now has the settings

    ;enable_dl = on
    extension dir = "c:\php\ext"

    When i load the page I get a windows dialogue box saying Warning: PHP Startup: Unable to load dynamic library 'C:\php\ext\php_mapscript_44.dll' the specified module cannot be found. It is definitely there as I have checked!!

    Thanks very much for your help

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