Take care when you use HijackThis. It will produce a log of all the archives and programmes currently on your computer. Not all of them will be infected so be sure you have the correct information before you delete anything.
As indicated, various 'experts' seem to be willing to analyze your log and give you the required info.
I have been in contact with a site in the USA,
http://aumha.net/viewforum.php?f=1
The resident experts have been very patiently debugging my computer for the last week or so. It is not a simple process to clean up completely and you just have to follow the instructions carefully. I have had about four hours of work to do all that was asked of me.
Finally, my computer is clean and quick, at last!