mmc.exe (mmc stands for Microsoft Management Console) is a Windows NT/2000/XP generic process used for providing (and displaying) some administrative tools and plug-ins for hardware management (especially in the Control Panel).
The file that corresponds to this process is normally found in the directory "%SystemRoot%\system32\mmc.exe" (where %systemroot% is usually C:\WINDOWS by default).
The process mmc is not in any way a virus, a worm, a Trojan horse, spyware, or adware.
It is a system process which can be terminated.
