I had already run AVG and spybot and found nothing.
Your link took me to a site which told me a litle about antilogger which seems a legitimate dll though one which may be used in malware. I was encouraged to download 'Regutility 4.1'. I am a bit concerned about this software as it found 3310 problems with my registry (which I have today already scanned with sytem mechanic). These are invalid or empty keys and shared dll's. The software has some truly shocking spelling mistakes which doesn't inspire me with much confidence. The results of its scan didn't include any reference to antilogger so I haven't taken any action yet.