Index: /trunk/src/VBox/Main/src-helper-apps/VBoxExtPackHelperApp.cpp
===================================================================
--- /trunk/src/VBox/Main/src-helper-apps/VBoxExtPackHelperApp.cpp	(revision 51970)
+++ /trunk/src/VBox/Main/src-helper-apps/VBoxExtPackHelperApp.cpp	(revision 51971)
@@ -1787,4 +1787,7 @@
         return RTMsgInitFailure(rc);
 
+#ifdef RT_OS_WINDOWS
+    SUPR3InitEx(false /*fUnrestricted*/, NULL); /* Ignore return code, we only need the image verifier bits to work. */
+#endif
     RTERRINFOSTATIC ErrInfo;
     RTErrInfoInitStatic(&ErrInfo);