Download the Killbox.
Unzip it to the desktop
Double-click Killbox.exe to run it.
Select "Delete on Reboot".
Place the following line (complete path) in bold in the "Full Path of File to Delete" box in Killbox:
Put a mark next to "Delete on Reboot"
Click the red-and-white "Delete File" button. Click "Yes" at the Delete on Reboot prompt. Click "No" at the Pending Operations prompt.
If your computer does not restart automatically, please restart it manually.
Post a fresh HijackThis log
That dll still there?