Option in the setup to disable on-access scanner when installing CIS

It would be very nice and helpful to have an option to
disable the on-access realtime scanning when installing CIS
(i.e. within the setup).

This would help people who have another on-access antivirus
scanner installed (Avast, Avira, AVG, Kaspersky, you name it) and
who only want to use CIS as an additional on-demand scanner.

It could look like this:

[X] Enable on-access realtime scanning (recommended)
Note: Disable this if you have another scanner running in
the background.

Best regards,