Hi,Tib

First once again move HijackThis to a folder on your D:\Drive like so D:\HJT

Download Pocket Killbox version 2.0.0.175
From one of these loactions
http://www.downloads.subratam.org/KillBox.zip
http://www.atribune.org/downloads/KillBox.exe
If you already have Killbox first ensure it is this version !.
If you have the one in zipped form it MUST be unzipped/extracted first.

Start Killbox place a tick next to [x]delete on reboot.
Copy this whole list into the windows clipboard, all the Bolded below.

D:\WINDOWS\System32\setup32.exe
D:\WINDOWS\System32\systeminfos.exe
D:\WINDOWS\System32\mousehs.exe

mssmmspgr.exe<--For this item here do a file Search for it
once you find it place it in KillBox like the others above

Back in Killbox go > file > paste from clipboard,
Click the red highlighted X button and say yes to the first prompt and no to the second.

Exit Killbox and immediately restart your PC.

Once back at the forums make and post a hijackthis and findits logs, there will be more to do hang in there.

HGD

now once you do all of the above run a new scan with HijackThis
& go no where but here show me logfile