Quick helper to get IMMPxApplication reference

IMMPxIntegrationCache mmPxIntegrationCache =
                Application.FindExtensionByName("Session Manager Integration Extension") as IMMPxIntegrationCache;
            IMMPxApplication mmPxApplication = mmPxIntegrationCache .Application;


but have in mind, this gonna not work if you have WFM(workflow manager) in place :)

U got to use "Workflow Manager Integration" instead of "Session Manager Integration Extension"


Cheers,
happy coding...
would be sharing my findings always