This is part of the Babylon web browser toolbar and extension that will modify the browser's default search provider, DNS, and home page functions. The application toolbar3942519.exe, “Babylon Client Setup” by Babylon has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a self-extracting archive and installer and has been known to bundle potentially unwanted software. This will display context specific advertisements in the browser as well as attempt to modify the browser's search provider.