Hi Karthikeyan,

Am developing an addin for Excel using C#. When i try to trap the
SheetBeforeRightClick event(any event infact) of excel am getting "No such
interface supported" error.

You're more likely to get a helpful response if you post your question in the
public.vsnet.vstools.office newsgroup.

Regards

Stephen Bullen
Microsoft MVP - Excel

Professional Excel Development
The most advanced Excel VBA book available
www.oaltd.co.uk/ProExcelDev