I have managed to restore task manager, and removed the toolbar via manual registry editting and deleting files, however I am still getting the yellow bar and popup windows.
I am running Virusscan Enterprise 8 with the latest defs but this picks up nothing. I've run Ad-Aware and Spybot and whilst they have removed some items they have not fixed the problem. I have also run the free version of spyware doctor, and spyhunter with the same results. IF anyone can give me some advice as to where to go from here it would be appreciated.