Several months back using Spybot I removed backweb 137903, which is an HP agent for updating . I recently manually updated my photo software (HP), and by doing so put this backweb 137903 back on. My question is why will Spybot not recognize it for removal this time?

I update and run Spybot, Adware (lavasoft), CW Shredder weekly, and none of these tools are finding backwebs for removal, but it is there I see it in my running processes.