Manager.exe is a process belonging to the Lightbox file browser by Conceiva. This program is a non-essential process, but should not be terminated unless suspected to be causing problems. manager.exe is also a process belonging to the BargainBuddy advertising program by eXact Advertising LLC. This process monitors your browsing habits and distributes the data back to the author's servers for analysis. This also prompts advertising popups. This process is a security risk and should be removed from your system.