Reboot into safe mode. To do so shut the computer down, wait 30 seconds, restart the computer and immediately start tapping F8 at about one second intervals (may take a few tries to get the timimng right).It should boot to an option screen, choose safe mode then follow the prompts.
Once in safe mode run HT again, close all windows and browsers except HT, place a check to the left of the following iyems and press "fix checked":
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapps.yahoo.com/customize/ie/defaults/sb/ymsgr6/*http://www.yahoo.com/ext/search/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://red.clientapps.yahoo.com/customize/ie/defaults/sp/ymsgr6/*http://www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapps.yahoo.com/customize/ie/defaults/sb/ymsgr6/*http://www.yahoo.com/ext/search/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://red.clientapps.yahoo.com/customize/ie/defaults/su/ymsgr6/*http://www.yahoo.com
O2 - BHO: Windows Resources - {2D38A51A-23C9-48a1-A33C-48675AA2B494} - C:\WINDOWS\winres.dll (file missing)
Double-click on Killbox.exe to run it.
Put a tick by Standard File Kill.
In the "Full Path of File to Delete" box, copy and paste each of the following lines one at a time.
C:\WINDOWS\TEMP\win1168.tmp.exe
Click on the button that has the red circle with the X in the middle after you enter each file.
It will ask for confimation to delete the file.
Click Yes.
Continue with that procedure until you have pasted all of these in the "Paste Full Path of File to Delete" box.
Reboot into normal made and post a new HT log.
By any chance do you know what this is:
O1 - Hosts: 169.1.160.36 Biis01