mmups.exe is known to be a type of adware. The correct course of action is to remove this file, after backing up your PC, and scanning for more malware.

mmups has been linked to the malware Roimoi/Media-Motor adware, and should be cleaned quickly. Since malware and important files can have the same names, it is essential that you backup your PC before removing files indiscriminately.

To be sure that you are not removing important files, use Computer Associates's free scan of your PC.

If mmups.exe has been located on your PC, there's probably more malware or spyware you haven't discovered. Get a free scan of your PC.