diff -r e880629062dd -r e4a7b1cbe40c userlibandfileserver/fileserver/sfile/sf_svr.cpp
--- a/userlibandfileserver/fileserver/sfile/sf_svr.cpp	Wed May 05 05:11:16 2010 +0100
+++ b/userlibandfileserver/fileserver/sfile/sf_svr.cpp	Mon May 10 11:40:53 2010 +0100
@@ -590,7 +590,7 @@
 // Set the volume name.
 //
 	{
-    TInt r = CheckDiskSpace(0, aRequest);
+    TInt r = CheckDiskSpace(KMinFsCreateObjTreshold, aRequest);
     if(r != KErrNone)
         return r;
 
@@ -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;