Invoke installfromuri - software update

Hi, I am trying to implement software update provider for firmware updating. I have done following things.. 1. Created a new instance of CIM_SoftwareInstallationService. 2. Downloaded URI link 3. Then set success as method, KUint32_Set(&result, 0); KSetStatus(status, OK); in spec I shall copied herre the body content of response, <n1:InstallFromURI_OUTPUT> <n1:ReturnValue>0</n1:ReturnValue> </n1:InstallFromURI_OUTPUT> </s:Body> I don't know how to put description here, for this which method I shall calling. 4. I don't know about CIM_ConcretJob class details. How to fill this class properties values. Regards, George