Download LSP-Fix from the following link and save it to a location you can find later if necessary.
LSP-Fix
http://www.spyware911.net/downloads/LSPFix.exe
Follow these steps to remove Webhancer:
1. Click on start, settings, control panel.
2. Double-click on the Add/Remove Programs icon.
3. Uninstall Webhancer from the listing of programs
4. Delete the following files and directories:
c:\program files\webhancer\
c:\windows\webhdll.dll
c:\windows\whagent.inf
c:\windows\whInstaller.exe
c:\windows\whInstaller.ini
If you can not connect to the Internet after removing Webhancer, please run the LSP-Fix program I had you download earlier, and click on the finish button. Reboot and you should be able to get back on.
At this point, Webhancer should now be removed from your computer.
Then reboot, rescan with hijack from that system and post a fresh hijack log.