Java Client ECL Service with SSO

I have configured my Metastorm to use Windows SSO and when i try to call ECL service( to fetch the to do list ) or any other process which has been exposed as web service. The System is displying the following error error: (401) Unathorized users When i try to disable the windows authentication for the ECL.WS the system is not displaying the wsdl and it says Windows authentication needs to be enabled. I want to achieve the following 1. When user logs through browser the Metastorm should use Windows SSO 2. when the same is called from the Java Web service is should use the username/ password based authentication. In websso js is set as 0 and euser script has been set as using the admin console.