Settings accessible to restricted users

Ever since I installed Comodo firewall I’ve meant to ask why, in my restricted user account (Windows 2000 SP4) am I able to change any settings I like in Comodo e.g. turn off Security to Allow All or modify any rule. Surely the ability to alter such settings should be accessible only to an administrator’s account?

Is there anything I can do to block access to Comodo settings in user accounts?

Many thanks.