Since this morning my pc has been acting strange. I've had the dreaded blue screen twice, had to reinstall Aol, because it lost the modem, and couldn't find it again, and when I tried to scan for spyware not one of the programs would start up, at all. I downloaded Prevx1 just to see what it would find, and its found QTP-MT334.DLL. Its 4.05MB in size, and it was located in C:\WINDOWS\SYSTEM32. I have googled but not found much. Although since finding it, my pc seems better, I was just curious as even the Prevx website doesn't have much info.
It looks as though you were right. The digital signature is from Paragon Technology. I tried a demo of that program last week, but uninstalled it as I didn't like it.
Thanks for the links, but it's not QT, but QTP-MT334.DLL that is installed. Thats why I posted in the end, because all I could find was QT-MT334.DLL which wasn't the right one.
All said and done, it appears to be a reminant of the Paragon program I tried, so it looks safe. I've run AVG Antispyware and a few others and all seems ok. Just seems strange that Prevx1 found it to be malicious, when it seems not to be. As the pc has been fine today I will tick, and I think the problem yesterday was just either the modem or Aol...typical!