When I try to go to a particular website that I've visited before I get a message "The requested lookup key was not found in any active activation context." A few weeks ago I was not having any problem. What's going on?

Hi every one I have face one problem while using Internet Explorer it displayes IE can not find search page

Which Internet Explorer you are using.if IE7 then follow these steps:

1-Try to reinstall IE7 then reboot the system.
2- If you are getting same error message then try to uninstall IE7 and try to work with IE6 even with IE6 same problem.
3-Try to change the registrey value in the follwing key.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{89820200-ECBD-11cf-8B85-00AA005B4383}