Dear Rahul
I have tried to install windows live messenger 8.0 on My pc butI could not able to connect.
Now I would like to uninsatll the programme. But its not showing in add/remove programmes
and no Uninstall Option. pl. help to overcome from this issue

Try this...
Start - run (then copy and paste line below into the box.)
RunDll32 advpack.dll,LaunchINFSection %windir%\INF\msmsgs.inf,BLC.Remove
Then hit the enter button, then the OK button.
Restart Computer.

Try it at your own risk only