diff -r 5529f24b6aaf -r da1f3efa404b mpx/playbackframework/playbackserver/src/mpxplaybackserversession.cpp
--- a/mpx/playbackframework/playbackserver/src/mpxplaybackserversession.cpp	Mon Mar 08 21:44:04 2010 +0000
+++ b/mpx/playbackframework/playbackserver/src/mpxplaybackserversession.cpp	Sun Mar 14 13:11:48 2010 +0000
@@ -515,6 +515,13 @@
             break;
             }
 #endif // SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API
+        case EPbsSetPrimaryClient:
+            {
+            TInt error = iPlayer->ClientList()->SetPrimaryClient(*iMessageQueue);
+            TPckgC<TInt> handle(error);
+            aMessage.Write(0, handle);            
+            break;
+            }
         default:
             {
             PanicClient(aMessage,KErrNotSupported);