diff --git a/dlls/gdiplus/gdiplus.spec b/dlls/gdiplus/gdiplus.spec
index abb20a32ddd..054e71e4970 100644
--- a/dlls/gdiplus/gdiplus.spec
+++ b/dlls/gdiplus/gdiplus.spec
@@ -139,7 +139,7 @@
 @ stdcall GdipDeleteBrush(ptr)
 @ stdcall GdipDeleteCachedBitmap(ptr)
 @ stdcall GdipDeleteCustomLineCap(ptr)
-@ stub GdipDeleteEffect
+@ stdcall GdipDeleteEffect(ptr)
 @ stdcall GdipDeleteFont(ptr)
 @ stdcall GdipDeleteFontFamily(ptr)
 @ stdcall GdipDeleteGraphics(ptr)
diff --git a/dlls/gdiplus/image.c b/dlls/gdiplus/image.c
index 8691d648b24..de47c06fd8a 100644
--- a/dlls/gdiplus/image.c
+++ b/dlls/gdiplus/image.c
@@ -1601,6 +1601,14 @@ GpStatus WINGDIPAPI GdipCreateBitmapFromHBITMAP(HBITMAP hbm, HPALETTE hpal, GpBi
     return retval;
 }
 
+GpStatus WINGDIPAPI GdipDeleteEffect(CGpEffect *effect)
+{
+    FIXME("(%p): stub\n", effect);
+    /* note: According to Jose Roca's GDI+ Docs, this is not implemented
+     * in Windows's gdiplus */
+    return NotImplemented;
+}
+
 /*****************************************************************************
  * GdipSetEffectParameters [GDIPLUS.@]
  */
diff --git a/include/gdiplusflat.h b/include/gdiplusflat.h
index 3cf10207a50..db3045e0f0c 100644
--- a/include/gdiplusflat.h
+++ b/include/gdiplusflat.h
@@ -57,6 +57,8 @@ GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT,INT,INT,PixelFormat,BYTE*,
     GpBitmap**);
 GpStatus WINGDIPAPI GdipCreateBitmapFromStream(IStream*,GpBitmap**);
 GpStatus WINGDIPAPI GdipCreateBitmapFromStreamICM(IStream*,GpBitmap**);
+GpStatus WINGDIPAPI GdipCreateHICONFromBitmap(GpBitmap*,HICON*);
+GpStatus WINGDIPAPI GdipDeleteEffect(CGpEffect*);
 
 /* Brush */
 GpStatus WINGDIPAPI GdipCloneBrush(GpBrush*,GpBrush**);