Index: /trunk/src/VBox/Additions/WINNT/Installer/VBoxDrvInst.cpp
===================================================================
--- /trunk/src/VBox/Additions/WINNT/Installer/VBoxDrvInst.cpp	(revision 46709)
+++ /trunk/src/VBox/Additions/WINNT/Installer/VBoxDrvInst.cpp	(revision 46710)
@@ -142,4 +142,5 @@
     char   szPath[MAX_PATH];
     UINT   cchPath = GetModuleFileNameA(NULL, szPath, sizeof(szPath));
+    size_t cbName = strlen(pszName) + 1;
     if (cchPath && cchPath <= sizeof(szPath))
     {