+#if (_SETUPAPI_VER >= 0x0501)
+#define DI_FLAGSEX_FILTERSIMILARDRIVERS 0x02000000
+#define DI_FLAGSEX_INSTALLEDDRIVER 0x04000000
+#define DI_FLAGSEX_NO_CLASSLIST_NODE_MERGE 0x08000000
+#define DI_FLAGSEX_ALTPLATFORM_DRVSEARCH 0x10000000
+#define DI_FLAGSEX_RESTART_DEVICE_ONLY 0x20000000
+#endif