error loading c:\windows\system32\vqwjtclt.dll

Go to this forum http://www.dellcommunity.com/supportforums/board?board.id=si_hijack  and read the RED link at the top and then post your log on that forum along with what you have stated here, also post the Model of Dell you have and the OS Version. Please include a description of any other symptoms of malware you may have.