What I found about the reinstall for auxillary windows logons is that the first time it tries to reinstall and fails, then you click on AC and it will open. This will only happen once, if you open AC during that session or it will try to reinstall the next time yoiu open that logon. After the second time opening AC, everything works well from then on. I had to do that to every account because I had to connect them to the server all over. six accounts x 5 computers)
Not sure about Zone alarm.