I also had the searchplugin it was very hard to remove but I found the way how, also thanks to EDW.. THX
My OS is XP and running Internet Explorer 8.
I haven’t installed anything like Firefox and Mozilla at all!!
Run\Search : I couldn’t find anything in my pc like Babylon and bprotect
BUT I did find a directory and file sidekick manager.
Solution: goto save mode than >Run/Regedit: (registry) search for sidekick and delete everything you can find of sidekick.(there was 1 file sidekick that wouldn’t delete, seemed no problem) During the search I found out that I did have a directory of mozilla and firefox.. Delete them too!
I also noticed a directory and file of Babylon and bprotect, also Deleted!
Restarted the pc and the searchplugin directory never popped up anywere anymore.
Nothing of the below virus/spam killers I runned solved the problem.
They didn’t find anything.
Virus scanners: Norton and AVG
Spamkillers: Cccleaner, Anti Malware bytes, Super Anti Spyware,
windows security essentials, windows defender
Hope my info helpes out