If you are hijacked to www.jetsearch.org...
I was afflicted with this little sh!t for a week...try this.
Look in your running processes list...look for runsvc32.exe. M'kay. Now do a search on your hard disk(s) for this file, showing All files (hidden)
Stop the process, and archive the file runsvc32.exe.
Now you have stopped the process, you will find the hi-jack stops.
Delete the file and associated prefetch, and also the search redirectors that will show up in the search.
Should be cool now...worked for me, nothing malfunctions, but even so, back up the file...just in case. I am an enthusiastic amateur, not a pro.
Postscript - I will be shortly converting to Firefox. Good day.