Check the following:

BHO: RunBus Class - {4865F155-CE00-4E93-A414-147844D7C81A} -

URLSearchHook: (no name) - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)

BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)

BHO: SelasI Class - {59F4F380-01A0-4083-9FA4-E3B827319F7E} - C:\WINDOWS\system32\vcbhjzgu.dll (file missing)

BHO: MstrShk Class - {5B5E259E-9CA4-4777-A642-86F6F93E0875

BHO: CNisExtBho Class - {9ECB9560-04F9-4bbc-943D-298DDF1699E1} - C:\Program Files\Common Files\Symantec Shared\AdBlocking\NISShExt.dll

BHO: Viewpoint Toolbar BHO - {A7327C09-B521-4EDB-8509-7D2660C9EC98} - C:\Program

BHO: Hoja Class - {C07F60AC-688D-4F3E-89EC-30B281BDD2CC} - C:\WINDOWS\system32\asclpnnf.dll

BHO: Banner Rotator - {E954DB82-1533-4714-92F2-59C98D5C18CC} -

%programfiles%\pcodec\ISAMONITOR.EXE

%WINDIR%\SYSTEM32\VIRUXZ.DLL

I will look at the rest of the log later and give you more instructions, but now I have to go out somewhere.