Save it as file name: "fixme.reg" (not including the quotes). Save as file type: *All files* and save it on your Desktop.
CLOSE ALL WINDOWS (even this one) AND PROGRAMS!!!!REGEDIT4
[-HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon\Notify\vtstu.dll]
Run Hijack This!
Click "Do a systen scan only".
Then "check" the box to the left of these item(s):
O2 - BHO: ATLDistrib Object - {2353FCBC-012D-487B-8BF3-865C0929FBEB} - C:\WINDOWS\system32\vtstu.dll
O20 - Winlogon Notify: vtstu - C:\WINDOWS\system32\vtstu.dll
Then click "Fix checked" and close Hijack This!.
On the desktop, doubleclick fixme.reg and allow it to run. Let it merge into the registry.
Now, run Killbox.
In Killbox select "Delete on Reboot".
Paste the next line into the "Full Path of File to Delete" text box.
C:\WINDOWS\system32\vtstu.dll
Click the red dot with the white X in it, in the upper right of Killbox, then click "Yes", and "Yes" again.
When the machine reboots, "copy/paste" a new log file into this thread.