It's very likely that bridge.dll is spyware, adware, or a virus of some type. The best course of action is to remove this file, after backing up your PC, and scanning for more malware. This free PC scan will let you know for sure if the file is dangerous.

bridge and Flingstone Bridge Spyware Moduleare known types of malware. Scan and clean your system as soon as possible. Spyware can have the same file names as files associated with normal software, so it's a good idea to backup your drive before removing files. To ensure that you do not remove legitimate files, use this free program.

If bridge.dll has been found on your PC, there is a good chance that there is more spyware that hasn't been found yet, so be diligent in removing all offending files.

autochk.exe is an important file, and should not be disabled or modified in any way. Scan your PC using this tool to be sure the process has not been corrupted and that it is not actually spyware.

cmmpu.exe is associated with cmmpu, and is not known to be harmful to your PC. Since Spyware and viruses sometimes have the same name as legitimate files, it is a good idea to scan your system to be sure. You can scan your PC for free here.