Did your search settings recently change to isearch.omiga-plus.com and you are wondering how this search engine was installed on your machine? Most likely, Omiga-Plus  was bundled with another download. I’ve seen it bundled twice and here’s how the installer windows looked like:

You can remove Omiga-Plus from the Uninstall programs dialog. If that does not work you can use FreeFixer to repair your search and homepage settings.

Did you figure out which software download that bundled Omiga-Plus? Please share by posting a comment.