have a problem

every time i start my pc comodo says my spyware stopper dll is a worm i click trust this and it seems ok until i start pc again then i get same thin even if i go ib to firewall anc choose add trusted programs and sellect spyware stopper and add it
is this because it updates itself ever day. i am using this as i paid for lifetime membership and i find the program works well
how do i stop comodo warning me of this or do i have to live with it.