Sasetup.BHO is not a friend to your computer.  It is spyware that will install a Browser Helper Object (BHO) with the file name of sasetup.dll or tuscmod.dll.
The software may have been inadvertently installed when bundled with a package of free software.  This is how many spyware programs are able to make it onto your computer without your knowledge or permission.  The Browser Helper Object runs concurrently with Microsoft’s Internet Explorer and can do a lot of things that will not be particularly useful or helpful to you.
This program may have the capability to track your browsing habits.  This is in an effort to relay the information to another server that will forward targeted advertising tailored to your preferences.  It is highly recommended that you remove this nuisance with SpyZooka.

Associated Files:
sasetup.dll,
tuscod.dll