That is related to Begin2Search
Begin2Search is a browser plug-in that installs as a toolbar in Internet Explorer and displays advertising on the desktop.
Begin2Search monitors the user's browsing search queries and changes browser settings. Begin2Search may also redirect search requests. Some variants may download additonal software without the user's knowledge and consent.
Download HijackThis™ here:http://www.trendsecure.com/portal/en-US/th.../hijackthis.php
Right click on it and choose "Run as Administrator". Click 'Do a System Scan and Save log'.
The HJT log will open in notepad.
Copy and paste the contents of the HJT log into a NEW TOPIC in the HijackThis Logs and Malware Removal forum:http://www.bleepingcomputer.com/forums/f/22/virus-trojan-spyware-and-malware-removal-logs/
*****In the topic box, mention that this is a Vista computer