Following Ubuntu and Red Hat, Mandriva has said they will not pay money to Microsoft to be protected from unnamed patents, reports Linux Insider. Starting with Novell, Microsoft has convinced a number of companies to pay in exchange for an agreement that Microsoft will not sue them over certain patents.

Microsoft will not revel which patents they believe Linux is infringing on, which has lead many companies, such as Mandriva, and individuals to doubt that there is any real infringement on Microsoft patents. Because most Linux users believe that Microsoft does not really have a case against Linux, Novell and other companies (Xandros, Linspire, and even Samsung) that have paid Microsoft are frequently criticized, which could be another factor in Mandriva’s decision to decline the deal.