ActMon Computer Monitoring Control Center is used to create reports, start/stop the logging engine and change settings. The actual activity monitoring is done by the so-called ActMon Computer Monitoring Logging Engine in the background. If you want, you can even remove "acmcc.exe" from your PC and keep it, for example, on a disk or a CD.
Note that "acmcc.exe" is the ActMon Computer Monitoring Control Center (used to change the settings) and not the invisible logging engine. The ActMon Logging Engine is not visible on the PC after a secure installation.