Deactivate windows firewall on startup
On some computer that I have to manage remotly I can have some windows upgrade done. But in some case (new software install, or windows update to SP2) the windows firewall is automatically started and you can lost some software access (example : VNC). In my case, the firewalling is managed by another computer (A linux one) on the network and we need for some of our software to have full access to the network without the risk of a windows alert popup. So, I put a small batch file in the Start-up directory with the following line :
NETSH FIREWALL SET OPMODE DISABLE
Now, I’m sure that the firewall will never restart at the boot of the computer. Of course, this configuration require a firewall somewhere on your network between your computer and the internet, don’t forget this or you probably regret it one day.