"A new report suggests that the site requires users to install an ActiveX control that limits coupon printing and adds tracking data to printed coupons. In a report issued Tuesday, spyware researcher Ben Edelman accused online coupon site Coupons.com with deceptive business practices arising from its attempt to impose restrictions on consumers using digital rights management (DRM) techniques.

Edelman likens Coupons.com’s actions to Sony BMG’s disastrous attempt to conceal its DRM software using a rootkit. "Just as Sony had to rely on a rootkit to hide its DRM software from users who otherwise would have chosen to remove it, Coupons.com hides user IDs in obscure files and registry keys," the report said. "Just as Sony’s disclosures were less than forthright, so too does Coupons.com fail to tell users what it is doing and how."" Coupons.com DRM Likened To Sony Rootkit — DRM — InformationWeek