I have used NPE a few times and often it flags up iqvw64e.sys as a threat. Sometimes it successfully removes this and other times fails. I am obviously concerned from what I have read that there really is a piece of malware hiding in this file. On the NPE report it has no details on the file. I have searched the c drive for the file and found it in 3 places:
c:\ProgramFiles\Dell\SupportAssistAgent\PCDr\SupportAssist\6.0.6992.1236
c:\ProgramFiles\Dell\SupportAssist
c:\Apps\334CH\includes\aa\internal
I used VirusTotal to scan each which reports them as clean. I an not hugely IT literate so would value any feedback about how reliable these results might be.