Long, but not that bad. At the top of this forum is the following thread, http://www.daniweb.com/techtalkforums/thread7370.html please read.
Unzip HJT into it's own permanent folder before doing anything in order for it to create backups. (Not a temporary folder or directly on the desktop & not directly on your hard drive). Close all (browser) windows & rescan with hijackthis. When the scan is finished place a check in the box to the left of the following entries & click 'fix checked' :
F2 - REG:system.ini: UserInit=C:\Windows\System32\wsaupdater.exe,
O3 - Toolbar: (no name) - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - (no file)
(If the following is found in add/remove programs, uninstall it from there, otherwise follow these instructions)
O4 - HKLM\..\Run: [AceGain LiveUpdate] C:\Program Files\AceGain\LiveUpdate\LiveUpdate.exe
O4 - HKLM\..\Run: [RunDLL] rundll32.exe "C:\WINDOWS\Downloaded Program Files\bridge.dll",Load
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
O16 - DPF: {A16E6189-A1DD-4696-9806-0324C145D794} (KeyActivex Control) - http://www.jraun.com/activex/src/KeyActivex.ocx
O16 - DPF: {C7B05B62-C8D7-438C-840B-4994DAAA8EEE} - http://webpdp.gator.com/v3/download...ptdmgainads.cab
O16 - DPF: {FF0C042C-98E9-4C36-B2EC-E21FDFDCEF75} - http://download.redswoosh.net/Insta...rsinstaller.cab
Reboot into safe mode following the instructions here & navigate to & delete the following if found:
C:\Program Files\AceGain
Reboot normally after doing the above then post a fresh log please.