Opc.Ua.Com.ComUtils.CreateInstanceWithLicenseKey C# (CSharp) Method

		public static object CreateInstanceWithLicenseKey(Guid clsid, string hostName, UserIdentity identity, string licenseKey)
		{
			ServerInfo     serverInfo   = new ServerInfo();
			COSERVERINFO   coserverInfo = serverInfo.Allocate(hostName, identity);
			object         instance     = null; 
			IClassFactory2 factory      = null; 

			try
			{
				// check whether connecting locally or remotely.
				uint clsctx = CLSCTX_INPROC_SERVER | CLSCTX_LOCAL_SERVER;

				if (hostName != null && hostName.Length > 0)
				{
					clsctx = CLSCTX_LOCAL_SERVER | CLSCTX_REMOTE_SERVER;
				}

				// get the class factory.
				object unknown = null;

				CoGetClassObject(
					clsid,
					clsctx,
					ref coserverInfo,
					typeof(IClassFactory2).GUID,
					out unknown);

                // SetProxySecurity(unknown, coserverInfo.pAuthInfo);
                
                factory = (IClassFactory2)unknown;

                // check for valid factory.
                if (factory == null)
                {
                    throw ServiceResultException.Create(StatusCodes.BadCommunicationError, "Could not load IClassFactory2 for COM server '{0}' on host '{1}'.", clsid, hostName);
                }

                // SetProxySecurity(factory, coserverInfo.pAuthInfo);

				// create instance.
				factory.CreateInstanceLic(
					null,
					null,
					IID_IUnknown,
					licenseKey,
                    out instance);

                // SetProxySecurity(instance, coserverInfo.pAuthInfo);
			}
			finally
			{
				serverInfo.Deallocate();
                ComUtils.ReleaseServer(factory);
			}
			  
			return instance;
		}	
        #endif