Query string not allowed-ADS

Hi Experts,

I want to change the Path Prefix from "/AdobeDocumentServices/Config?style=rpc" to "/AdobeDocumentServices/Config?wsdl" in SM59 for ADS HTTP connection as given in the link http://wiki.scn.sap.com/wiki/display/TechTSG/(MID)com.sap.SOA.wsr.030104?original_fqdn=wiki.sdn.sap.com

But when am about to save it shows "Query string not allowed". Followed as given in this post http://scn.sap.com/thread/826756 but still facing the same issue.

Kindly help to solve it.

Thanks,

Preetha Balan