diff --git a/reactos/dll/win32/user32/controls/button.c b/reactos/dll/win32/user32/controls/button.c
index ea872deffcf..40c1d5b95e5 100644
--- a/reactos/dll/win32/user32/controls/button.c
+++ b/reactos/dll/win32/user32/controls/button.c
@@ -16,16 +16,61 @@
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ *
+ * NOTES
+ *
+ * This code was audited for completeness against the documented features
+ * of Comctl32.dll version 6.0 on Oct. 3, 2004, by Dimitrie O. Paun.
+ * 
+ * Unless otherwise noted, we believe this code to be complete, as per
+ * the specification mentioned above.
+ * If you discover missing features, or bugs, please note them below.
+ * 
+ * TODO
+ *  Styles
+ *  - BS_NOTIFY: is it complete?
+ *  - BS_RIGHTBUTTON: same as BS_LEFTTEXT
+ *  - BS_TYPEMASK
+ *
+ *  Messages
+ *  - WM_CHAR: Checks a (manual or automatic) check box on '+' or '=', clears it on '-' key.
+ *  - WM_SETFOCUS: For (manual or automatic) radio buttons, send the parent window BN_CLICKED
+ *  - WM_NCCREATE: Turns any BS_OWNERDRAW button into a BS_PUSHBUTTON button.
+ *  - WM_SYSKEYUP
+ *  - BCM_GETIDEALSIZE
+ *  - BCM_GETIMAGELIST
+ *  - BCM_GETTEXTMARGIN
+ *  - BCM_SETIMAGELIST
+ *  - BCM_SETTEXTMARGIN
+ *  
+ *  Notifications
+ *  - BCN_HOTITEMCHANGE
+ *  - BN_DISABLE
+ *  - BN_PUSHED/BN_HILITE
+ *  + BN_KILLFOCUS: is it OK?
+ *  - BN_PAINT
+ *  + BN_SETFOCUS: is it OK?
+ *  - BN_UNPUSHED/BN_UNHILITE
+ *  - NM_CUSTOMDRAW
+ *
+ *  Structures/Macros/Definitions
+ *  - BUTTON_IMAGELIST
+ *  - NMBCHOTITEM
+ *  - Button_GetIdealSize
+ *  - Button_GetImageList
+ *  - Button_GetTextMargin
+ *  - Button_SetImageList
+ *  - Button_SetTextMargin
  */
-
+#define NDEBUG // turn off TRACEs
 #include <user32.h>
 
 /* GetWindowLong offsets for window extra information */
 #define STATE_GWL_OFFSET  0
 #define HFONT_GWL_OFFSET  (sizeof(LONG))
-#define HIMAGE_GWL_OFFSET (HFONT_GWL_OFFSET*sizeof(LONG))
-#define NB_EXTRA_BYTES    (HIMAGE_GWL_OFFSET*sizeof(LONG))
+#define HIMAGE_GWL_OFFSET (HFONT_GWL_OFFSET+sizeof(HFONT))
+#define NB_EXTRA_BYTES    (HIMAGE_GWL_OFFSET+sizeof(HANDLE))
 
   /* Button state values */
 #define BUTTON_UNCHECKED       0x00
@@ -139,7 +184,7 @@ __inline static HFONT get_button_font( HWND hwnd )
 
 __inline static void set_button_font( HWND hwnd, HFONT font )
 {
-    SetWindowLongPtrW( hwnd, HFONT_GWL_OFFSET, (LONG)font );
+    SetWindowLongPtrW( hwnd, HFONT_GWL_OFFSET, (LONG_PTR)font );
 }
 
 __inline static UINT get_button_type( LONG window_style )
@@ -308,6 +353,7 @@ static LRESULT WINAPI ButtonWndProc_common(HWND hWnd, UINT uMsg,
         break;
 
     case WM_CAPTURECHANGED:
+        TRACE("WM_CAPTURECHANGED %p\n", hWnd);
         state = get_button_state( hWnd );
         if (state & BUTTON_BTNPRESSED)
         {
@@ -367,6 +413,7 @@ static LRESULT WINAPI ButtonWndProc_common(HWND hWnd, UINT uMsg,
         return (LRESULT)get_button_font( hWnd );
 
     case WM_SETFOCUS:
+        TRACE("WM_SETFOCUS %p\n",hWnd);
         set_button_state( hWnd, get_button_state(hWnd) | BUTTON_HASFOCUS );
         paint_button( hWnd, btn_type, ODA_FOCUS );
         if (style & BS_NOTIFY)
@@ -374,6 +421,7 @@ static LRESULT WINAPI ButtonWndProc_common(HWND hWnd, UINT uMsg,
         break;
 
     case WM_KILLFOCUS:
+        TRACE("WM_KILLFOCUS %p\n",hWnd);
         state = get_button_state( hWnd );
         set_button_state( hWnd, state & ~BUTTON_HASFOCUS );
 	paint_button( hWnd, btn_type, ODA_FOCUS );
@@ -819,7 +867,6 @@ static void PB_Paint( HWND hwnd, HDC hDC, UINT action )
     SetBkMode(hDC, oldBkMode);
 }
 
-
 /**********************************************************************
  *       Check Box & Radio Button Functions
  */
@@ -1053,6 +1100,7 @@ static void UB_Paint( HWND hwnd, HDC hDC, UINT action )
         DrawFocusRect( hDC, &rc );
 }
 
+
 /**********************************************************************
  *       Ownerdrawn Button Functions
  */
diff --git a/reactos/media/doc/README.WINE b/reactos/media/doc/README.WINE
index 137707b1114..4159e0e7dca 100644
--- a/reactos/media/doc/README.WINE
+++ b/reactos/media/doc/README.WINE
@@ -114,7 +114,7 @@ msvcrt -
   reactos/dll/win32/msvcrt/wine/*.c             # Out of sync
 
 User32 -
-  reactos/dll/win32/user32/controls/button.c    # Out of sync
+  reactos/dll/win32/user32/controls/button.c    # Synced at 20060621
   reactos/dll/win32/user32/controls/edit.c      # Out of sync
   reactos/dll/win32/user32/controls/static.c    # Out of sync
   reactos/dll/win32/user32/misc/wsprintf.c      # Out of sync