i am using windows vista

Use startup manager or winpatrol to permanently remove it from your
system startup.

Startup Manager - 'Startup Manager' (http://www.startupmanager.org)
Winpatrol - 'BillP Studios: WinPatrol' (http://www.winpatrol.com)

It means that your computer is looking for part of the My WebSearch toolbar
(malware) which it expects to load at startup and isn't finding it. If you
recently cleaned up your computer, then just manage this in your Startup.
If you haven't cleaned up your computer, it would be a really good idea to
do so.

General malware removal steps:
http://www.elephantboycomputers.com/page2.html#Removing_Malware

Do the above to make sure the computer is clean. If it is, then:

Start Orb>Start Search box>msconfig [enter]

If you are prompted for an administrator password or for a confirmation,
type the password, or click Continue. Then see what is on the Startup tab.
You don't need to restart immediately, but the next time you do you'll get
a dialog saying you've used the Utility. Usually in Vista this will be
blocked by Windows Defender and you'll need to allow it so you can then
tick the box that says in effect, "don't bother me about this again".

Important - Do not use the System Configuration Utility to stop processes.
Instead, use Start>Run>services.msc [enter] and do not stop any services
unless you really, really know what you're doing.

The free Autoruns program is very useful for managing your Startup -
http://www.microsoft.com/technet/sysinternals/default.mspx - Autoruns

Malke

THANKS FOR THE HELP THE MESSAGE IS GONE.