Hi,
I'm a member of the Searchnu Support Team. I'm here to help
Excuse my, my French is not so good so I will write in English
From the URL you provided it looks like Searchnu was installed on your PC when you
installed Koyote- a download manager which includes Searchnu as an option.
When the software was installed onto your pc it offered two basic installs, typical installation,
which lists the add-on features such as searchnu default search, and Custom installation,
which allows you to select the add-ons that you wish to install. There's no need to worry if you did the typical install - this isn't a virus,
nor malware, and there's no need to Perform a virus scan against it.
Please visit Koyote's support section where you will find detailed instructions for uninstalling Searchnu
at:http://koyotesoft.kayako.com/Troubleshooter/Step/View/1
Thank you,
The Searchnu Support Team