Uninstall Kazaa & then run Kazaabegone from here. to clear out the remnants.
Clear out your Temporary internet files and other temp files.
Go to Start > Settings > Control Panel >Internet Options.
Under the General tab click the Delete temporary internet files,
delete all Offline content as well. Clear out Cookies.
Also, go to Start > Find/search > Files or folders > in the named box, type: *.tmp and choose Edit > select all -> File > delete.
Empty/delete the entire contents of the C:\Windows\temp folder and C:\temp folder, if you have one. (Contents but not the folder itself.)
This one too if Win2K or XP.
C:\Documents and Settings\username\Local Settings\Temp\
Empty the Recycle Bin.
Download CWShredder from here & run it. Select the fix button & it will fix everything related to CoolWebSearch that is stored in it's database. Close ALL windows, including Iinternet Explorer, before running CWShredder. Reboot.
To help prevent this from happening again, install the patches for the vulnerabilities that this hijacker exploits by going here for your critical updates.
Download & instal Adaware from here
& update it before scanning.
In settings under 'scanning,' have it set to
'scan within archives,'
'scan active processes,'
'scan registry,'
'deepscan registry'
'scan my IE Favourites for banned URL's,'
'scan my host's file.'
In 'tweaks' under 'scanning engine' set it to 'unload recognised processes during scanning.'
Also in 'tweaks' under 'cleaning engine' set it to 'Automatically try to unregister objects prior to deletion' & 'let Windows remove files in use at next reboot.'
Select 'activate in-depth scan' before starting scan.
When the scan is finished select 'next.'
Remove what it finds by placing a check in the box to the left of the object. Reboot
Download & instal Spybot S&D from here. Update it before scanning.
After the scan is complete, have spybot fix everything marked RED.
On the page that first opens when you start Spybot there is an option to immunise, you should do this. In the immunise section there is also a link to download Spywareblaster. This program will prevent the install of bad activex controls that it has knowledge of. Download that & you can keep it updated by selecting the same link that you use to download it.
Reboot after doing this & post another log please.