Method InvokeDialog NamespaceInnova.Prism.Library.Security.LowLevel AssemblyInnova.Prism.Library.dll InvokeDialog(IntPtr) See http://msdn.microsoft.com/en-us/library/ms677102.aspx. ObjIdl.IDataObject InvokeDialog(IntPtr hwndParent) Parameters hwndParent IntPtr actually a HWND Returns ObjIdl.IDataObject