Enable MySQl in PHP installed with the ISAPI option?

Sure - we have followed this guide:
 http://www.iis-resources.com/modules/AMS/article.php?storyid=615


Hm thats the strange part - We then tryied to uncomment that but nothing happens :-(

I  also tried to follow this guide:
http://www.iis-resources.com/modules/AMS/article.php?storyid=643

But can't get it to work...

Have you restarted IIS? checked the Event Log for errors?

Is PHP executing? if you type the following into notepad:

<?php phpinfo(); ?>

and save it as phpinfo.php then try and browse to it what happens?

Yes its running fine and responding to --> <?php phpinfo(); ?>

But the MySQL module isn't there. "Additional Modules" is empty.

I think i have found the source of the error:

We have not used default directory but we have used our own...

But in the info.php the config file tells us that it's:

extension_dir      C:\php5      C:\php5

????
We have set the extension in the ini file - but seam like it does not care what we have written there:

extension_dir = "C\Serverside_something\something\php_xx\ext"

We have also tried this version

extension_dir = C\Serverside_something\something\php_xx\ext

But no change.,...

Another wierd thing is:  

;;;;;;;;;;;;;;;;
; File Uploads ;
;;;;;;;;;;;;;;;;

; Whether to allow HTTP file uploads.
file_uploads = off

; Temporary directory for HTTP uploaded files (will use system default if not
; specified).
;upload_tmp_dir = "H:\Serverside_applications\5php\usr\uploads"S

; Maximum allowed size for uploaded files.
upload_max_filesize = 1M


As you can se fileuploads is set to "off"

But in the config file it claims to be "on"

I'm getting nutty over this.....

Ok looking through the issue Iäve found the soucre of the error.

The php.ini is not read by php.

It claims to be in:
C:\Windows

But its not . it located in a custumized directory which is written in to system PATH and the hph.ini has also been configuered.

We have done the following:
53.15.        How do I make the php.ini file available to PHP on windows?
      

There are several ways of doing this. If you are using Apache, read their installation specific instructions (Apache 1, Apache 2), otherwise you must set the PHPRC environment variable:

On Windows NT, 2000, XP and 2003:

    *

      Go to Control Panel and open the System icon (Start -> Settings -> Control Panel -> System, or just Start -> Control Panel -> System for Windows XP/2003)
    *

      Go to the Advanced tab
    *

      Click on the 'Environment Variables' button
    *

      Look into the 'System variables' pane
    *

      Click on 'New' and enter 'PHPRC' as the variable name and the directory where php.ini is located as the variable value (e.g. C:\php)
    *

      Press OK and restart your computer

Aslo see --> http://www.iis-resources.com/modules/AMS/article.php?storyid=615&page=2

Now we cannot get this to work!

The PHPRC is not working for some reasons.

What is wrong/what to do -  any clues?

I found the solution myselfes -  thanks for the help though.