Overview:
180 Search Assistant is generally installed by some other piece of spyware. This not only displays ads but logs your browsing habits to send back to 180! If you have this you most likely have several other programs that you need to uninstall.

brought to you by: http://www.180searchassistant.com

Destroy Autorun:
Delete the following keys
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lgbibsn
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\msbb
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tov
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sais
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saie
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\180ax

Reboot your system then:

Make sure you click start --> Run and type in msconfig. Then select the startup tab. Any references to the processes below should be deleted

End Processes (may or may not exist):
180ax.exe
jkill.exe
msbb.exe
saap.exe
sais.exe
salm.exe
silent.exe

Unregister DLLs:
Tip: this is only a list of known files/locations. You will want to do a search by the name of the file to see if they're on your system.
A while back I wrote a guide to Register/remove DLL or AX files which you will need if you don't know how to unregister these files.

Each file is in several locations so you'll need to search for them and unregister + delete them in every location you find.

180.dll
witircl.dll

Remove Directories:
%program files%\180search assistant
%program files%\180solutions

Clean your Registry:

You should be back to normal IF this was your only problem. I suggest you post in our HJT forum since its not likely that this is your only bug. Read this first