diff --git a/reactos/include/ddk/nettypes.h b/reactos/include/ddk/nettypes.h
new file mode 100644
index 00000000000..d301f1354e7
--- /dev/null
+++ b/reactos/include/ddk/nettypes.h
@@ -0,0 +1,32 @@
+
+#ifndef _NETTYPES_
+#define _NETTYPES_
+
+#define HARDWARE_ADDRESS_LENGTH             6
+#define NETMAN_VARTYPE_ULONG                0
+#define NETMAN_VARTYPE_HARDWARE_ADDRESS     1
+#define NETMAN_VARTYPE_STRING               2
+
+
+typedef ULONG OFFSET;
+
+typedef struct _FLAT_STRING
+{
+  SHORT MaximumLength;
+  SHORT Length;
+  char Buffer [1];
+} FLAT_STRING, *PFLAT_STRING;
+
+
+typedef struct _NETWORK_NAME
+{
+  FLAT_STRING Name;
+} NETWORK_NAME, *PNETWORK_NAME;
+
+typedef struct _HARDWARE_ADDRESS
+{
+  UCHAR Address [HARDWARE_ADDRESS_LENGTH];
+} HARDWARE_ADDRESS, *PHARDWARE_ADDRESS;
+
+#endif
+