APL is a software developer for Windows.
It is reported that the following Windows processes are part of Monitor observer:
If you want to remove Monitor observer from your computer, just go to Start > Control Panel > Add/Remove programs and select Monitor observer from the list of programs.
It is reported that the following Windows processes are part of Monitor 502:
If you want to remove Monitor 502 from your computer, just go to Start > Control Panel > Add/Remove programs and select Monitor 502 from the list of programs.