Index: /trunk/src/VBox/Main/src-server/SystemPropertiesImpl.cpp
===================================================================
--- /trunk/src/VBox/Main/src-server/SystemPropertiesImpl.cpp	(revision 82425)
+++ /trunk/src/VBox/Main/src-server/SystemPropertiesImpl.cpp	(revision 82426)
@@ -1372,4 +1372,5 @@
         GraphicsControllerType_VMSVGA,
         GraphicsControllerType_VBoxSVGA,
+        GraphicsControllerType_Null,
     };
     aSupportedGraphicsControllerTypes.assign(aGraphicsControllerTypes,
@@ -1435,4 +1436,5 @@
         NetworkAttachmentType_Cloud,
 #endif
+        NetworkAttachmentType_Null,
     };
     aSupportedNetworkAttachmentTypes.assign(aNetworkAttachmentTypes,
@@ -1546,4 +1548,5 @@
         AudioDriverType_Pulse,
 #endif
+        AudioDriverType_Null,
     };
     aSupportedAudioDriverTypes.assign(aAudioDriverTypes,