diff --git a/reactos/include/psdk/winuser.h b/reactos/include/psdk/winuser.h
index 8700be78f5d..57c1ac13aac 100644
--- a/reactos/include/psdk/winuser.h
+++ b/reactos/include/psdk/winuser.h
@@ -2446,8 +2446,18 @@ extern "C" {
 #define ODS_DISABLED 4
 #define ODS_CHECKED 8
 #define ODS_FOCUS 16
+#if(WINVER >= 0x0400)
 #define ODS_DEFAULT 32
 #define ODS_COMBOBOXEDIT 4096
+#endif
+#if(WINVER >= 0x0500)
+#define ODS_HOTLIGHT        0x0040
+#define ODS_INACTIVE        0x0080
+#if(_WIN32_WINNT >= 0x0500)
+#define ODS_NOACCEL         0x0100
+#define ODS_NOFOCUSRECT     0x0200
+#endif
+#endif
 #define IDHOT_SNAPWINDOW (-1)
 #define IDHOT_SNAPDESKTOP (-2)
 #define DBWF_LPARAMPOINTER 0x8000
diff --git a/reactos/include/reactos/win32k/ntuser.h b/reactos/include/reactos/win32k/ntuser.h
index a9feb1fb69f..8e59d26b4cc 100644
--- a/reactos/include/reactos/win32k/ntuser.h
+++ b/reactos/include/reactos/win32k/ntuser.h
@@ -221,12 +221,15 @@ C_ASSERT(sizeof(CLIENTINFO) == FIELD_OFFSET(TEB, glDispatchTable) - FIELD_OFFSET
 
 #define GetWin32ClientInfo() ((PCLIENTINFO)(NtCurrentTeb()->Win32ClientInfo))
 
+/* Menu Item fType. */
+#define MFT_RTOL 0x6000
+
 typedef struct tagITEM
 {
     UINT fType;
     UINT fState;
     UINT wID;
-    struct tagMENU* spSubMenu; /* Pop-up menu.  */
+    struct tagMENU* spSubMenu; /* Pop-up menu. */
     HANDLE hbmpChecked;
     HANDLE hbmpUnchecked;
     USHORT* lpstr; /* Item text pointer. */
@@ -250,12 +253,21 @@ typedef struct tagMENULIST
    struct tagMENU*     pMenu;
 } MENULIST, *PMENULIST;
 
+/* Menu fFlags, upper byte is MNS_X style flags. */
+#define MNF_POPUP       0x0001
+#define MNF_UNDERLINE   0x0004
+#define MNF_INACTIVE    0x0010
+#define MNF_RTOL        0x0020
+#define MNF_DESKTOPMN   0x0040
+#define MNF_SYSDESKMN   0x0080
+#define MNF_SYSSUBMENU  0x0100
+
 typedef struct tagMENU
 {
     PROCDESKHEAD head;
-    ULONG fFlags;             /* Menu flags (MF_POPUP, MF_SYSMENU) */
+    ULONG fFlags;             /* [Style flags | Menu flags] */
     INT iItem;                /* nPos of selected item, if -1 not selected. */
-    UINT cAlloced;            /* Number of allocated items. */
+    UINT cAlloced;            /* Number of allocated items. Inc's of 8 */
     UINT cItems;              /* Number of items in the menu */
     ULONG cxMenu;             /* Width of the whole menu */
     ULONG cyMenu;             /* Height of the whole menu */