zlib extension ?

Hello, I am trying to install an php/mysql application which has an automatic install routine ... however, while running it, it checks for installed components and came up with the following message concerning a missing extension ... >> For Claroline to work, you need the following on the server : >> >> * Webserver (you have Apache/1.3.23 (Win32) >> * with PHP 4.x, (you have PHP 4.1.2) >> o zlib is !!missing!! Can someone tell me what this could be about? ZLIB seems to be a php extension and on my win2k machine there should be a dll file for this? I found a website and downloaded the zlib.dll ... but where do I now save it to? the php/dlls/ folder? a folder in the /winnt/ folder tree? Will I need to edit the php.ini file as well to get this working? Any input is greatly appreciated, especially since I am not as familair with reading the type of documentation provided on the websites for this zlib extension :-) God bless you with His grace and peace Wolfgang Looking for Biblical information? COME AND SEE! -- ONLINE Courses: http://classes.bibelcenter.de ... NEW! -- BibelCenter: http://www.bibelcenter.de -- Bookstore: http://www.worthy.net/BibelCenter/