After recently installing the free version of Zone Alarm Firewall 7.1 (Vista compatible version) on my Windows Vista Home Premium operating system, problems occurred relating to startup programs. First of all, Zone Alarm's control panel itself does not load on startup, not even in the system tray, but the "zclient" process appears to be running. The Windows Vista side bar did not load, and the control panel of my anti-virus program, NOD32 did not load on startup either. All of these programs including zone alarm were configured to load on system startup. This was also confirmed with Vista's Windows Defender. Also, the browser, Mozilla Firefox would not load when I started the application. After uninstalling Zone Alarm Firewall, all my programs worked perfectly.

Is this related to Zone Alarm's compatibility problems with the Vista operating system?
Is anyone else experiencing similar problems?

Operating System:Windows Vista Home Premium
Software Version:7.1 (Vista)
Product Name:ZoneAlarm (Free)