In the registry, search for HKEY_LOCAL_MACHINE\SOFTWARE\PLESK\PSA Config\Config . Also the value of USE_WSB_VERSION (REG_SZ) should be set to that of the sitebuilder with which you want to integrate. Once done, the correct version number should be displayed on “Components Management.”
To use a secure protocol (https) specify USE_WSB_SCHEME, USE_WSB_LOGIN, USE_WSB_PASSWORD & USE_WSB_LOGIN, USE_WSB_PORT. For a regular protocol, just set values for port & password.
Except for localhost, all other IP’s are banned for usage of webservices by Sitebuilder. To match this, go to the Service Facade folder in your IIS. Navigate to Websites & then Sitebuilder. In there, put in the IP of the server followed with the path as Properties -> Directory security -> IP address and domain name restrictions -> Edit