XBAP to JavaScript communication

Hi

I referred to link http://social.msdn.microsoft.com/Forums/vstudio/en-US/59664211-dc73-4db1-bea2-0c831fc0a15c/xbap-ie-9-issue?forum=wpf

and was able to solve my problem in IE 9 using the sample code that uses file XbapFtHelper.cs.  However, the same code does not work in IE 10. 

The function GetHostWindow does not succed in returning the IE Frame parent window.

Please let me know if there are any workarounds or alternativves.

Regards

yet