diff -r a179b74831c9 -r c1f20ce4abcf userlibandfileserver/fileserver/sfile/sf_svr.cpp
--- a/userlibandfileserver/fileserver/sfile/sf_svr.cpp	Thu Aug 19 11:14:22 2010 +0300
+++ b/userlibandfileserver/fileserver/sfile/sf_svr.cpp	Tue Aug 31 16:34:26 2010 +0300
@@ -1314,8 +1314,13 @@
 
                 return KErrNone;
             }
-
-            
+            case EFSysExtensionsSupported:
+            {
+                TBool supported = pDrive->GetFSys()->IsExtensionSupported();
+                TPckgBuf<TBool> data(supported);
+                aRequest->WriteL(KMsgPtr2,data);
+                return KErrNone;
+            }
 		default:
 			{
 			return KErrNotSupported;