Missing OCX Controller.

Hi All, I have setup a development server at work, running NT4 Server, with IIS4 which is all good, except when I try to install to PHP using the precompiled version, I get a missing OCX controller error. Now I understand that I will have to edit the configuration file manually at this point, but I am unsure which settings do what mostly because of my inexperience in having to do such things. Is there a way I can work around this by downloading the controllers required, placing them where they should be, and then reinstalling the PHP to find that it configures itself automatically, and my heartache can end? Regards, James.