Hi Neetu,
I m catching Explorer.BeforeFolderSwitch event and Set WebViewOn
property.

however still , when i m navigating from one folder to another same
1st state is
visible at internet explorer of Outlook.

Maybe the IE control is just caching the web site. Are you in control of
the web site which is called? If yes, try to set the expires header to the
current time so that the client recognizes that it must reload the page
content.
If you are not in control of the website, you need to add some bogus
URL parameter like yourUrl&dummy=currentTimeStamp. So you
woule need the above events and change the webview-URL each time
your folder is selected.

--
SvenC