http://blogs.msdn.com/b/eric_carter/archive/2007/07/31/ipicturedisp-and-system-drawing-image.aspxCheck out this great post by Andrew Whitechapel on this issue which comes up all the time in Office development when working with toolbars and ribbons: Converting between IPictureDisp and System.Drawing.Imageen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)