Index: /trunk/src/VBox/Main/include/GuestCtrlImplPrivate.h
===================================================================
--- /trunk/src/VBox/Main/include/GuestCtrlImplPrivate.h	(revision 71782)
+++ /trunk/src/VBox/Main/include/GuestCtrlImplPrivate.h	(revision 71783)
@@ -626,4 +626,6 @@
     /** Extended open flags (currently none defined). */
     uint32_t                mfOpenEx;
+    /** Initial file offset. */
+    uint64_t                muOffset; /** @todo Remove this in the next protocol version. */
 };