First, try the usual - disable and/or remove in the browsers; and uninstall from Add/Remove Programs if it's listed there.
If that doesn't fully work there's a removal topic for this Adware at
Watch out that AdwCleaner doesn't remove things it shouldn't. When I tried it out it deleted SiteAdvisor from Chrome and DoNotTrackMe from Internet Explorer. It's a useful program but is flawed.
Moved this to Malware Discussions just in case. I Googled this uninstallation guide which seems fine: http://malwaretips.com/blogs/remove-coupon-companion-ads/
By the way, never use or post live email addresses or other personal information in public, it can be misused.
I altered your log in name to kasar so you will have to log in once more.