WSDL not being created (or I'm being dense)

Hi folks, I've just managed to install WSFPHP (after battling for several hours, turns out it was that zlib1.dll wasn't installed, where does it say this in the manual!!) and although I can get the web services to work now, adding ?wsdl to a service page URL doesn't generate me a WSDL as promised in the manual :( WSDL url http://localhost/wsfphp/test1.php?wsdl or http://localhost/wsfphp/test1.php?wsdl2 Neither URLs work, however, when using IE, a text file opens with nothing in it. I used this PHP as a test <?php /** splitMe function * @param string $string_to_split string to split * (maps to the xs:string XML schema type ) * @return array of string $result split to array *(maps to the xs:double XML schema type ) */ function splitMe($string_to_split) { return array("result" => split(":", $string_to_split)); } $operations = array("splitMe"=>"splitMe"); $opParams = array("splitMe"=>"MIXED"); $svr = new WSService(array("operations"=>$operations, "bindingStyle"=>"doclit", "opParams"=>$opParams)); $svr->reply(); ?> from this URL http://www.dimuthu.org/catagory/wsdl/ Any help appreciated, as this looks like a cracking tool and I want to use it! Cheers Jim PS I'm running PHP 5.2.11 WSFPHP 2.0.0 Windows XP Prof -> IIS