Have you used Spysweeper in Safe Mode?
Have you done a search, in Safe mode for these two files;
c:\windows\imsins.log
c:\windows\kb887998.log

I would suggest that your update all these programs, AdAwareSE, Spybot, Spysweeper, your antivirus program, Enable the Viewing of Hidden Files and Folders and then reboot to SAFE MODE

Run each of the above programs and remove whatever they find. Make note of name and location of anything found and post back here with that also.
Then do a file search for the above two folders and also any files which happen to be found by the Safe Mode Scans.
Once you have completed all of the above then reboot to Normal Mode and run a new HJT scan and save the log and post it along with the new FULL Spysweeper log