IEXPLORE keeps coming back, popups, sounds...

I am running 32-bit Windows XP Pro with SP2. To access the web I use Firefox. The antivirus program that is installed on my machine is TrendMicro Office Scan. At the same time that the symptoms started, Trend Micro reported a file called "POSSIBLE_HIFRM-5" located in "C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\" although it seems that it didn't do anything about it. Initial symptoms were:

-IEXPLORE.EXE process keeps coming back if I kill it. The process seems to be created by svchost.exe
-Every once in a while, there is a IE popup window with ads
-Also every once in a while you hear what might be an ad, like a conversation between two men, that lasts a few seconds
-There are clicking sounds, like when you use IE and you click on a link. After a while, the "wave" sound bar goes down to zero.

I ran SuperAntiSpyware, MalwareBytes, ComboFix, RootRepeal, and MGtools as per the directions on this forum. The logs are attached. Note, when I ran RootRepeal and scanned files, I got an error message that said "Unrecognized partition type 6 (0x6)!".

After running all of those programs, the popups, sounds ,and wave going to zero seem to have stopped, but the IEXPLORE.EXE process is still there and keeps coming back if I kill it.

Thanks in advance for any assistance.

 

Edit:

Actually, the shenanigans with the clicking sounds and wave volume going to zero have not stopped.