hi,
i have recently had a form of coolwebsearch (coolwww), and i know how annoying it is, as it is so hard to remove. I have been reading some of the posts here, and have realised what a bid problem it is - so heres how i fixed it.
Firstly, make a note of what your homepage is changing to - eg res://tydni.dll/index...etc
next you should get a copy of cwshredder, from
here and a copy of lavasoft ad-aware. update all the definitions on these 2.
Run them, and tell it to delete all findings.
once you have done that you need to search your computer for the .dll file, as in your homepage (in my example it would be tydni.dll ). Once you have found it, open it in notepad, select and delete all the code, and then save the file.
re-run adaware and cwshredder, and once again delete anything it finds.
Change your homepage and search page to whatever you want, and you should be cured; i was!