Are you wondering how Web Companion Pro got installed on your computer? Well, If you were to download FileZilla from filezilla-project.org, it will be bundled along with the install.
Ad-Aware Web Companion Pro detects and blocks harmful websites, defending you against malicious threats such as malware, phishing sites and browser hijacking.
This is the reason why I always encourage users to read before they click and also to use the custom options when installing all software programs.
A bundled program could be useful but it can also have a old program that is not patched against exploits and this can be harmful to your system and information.