Bug when checking for update with firewall enabled

Hi,

when you try to check for updates for Privatezilla and you have a firewall enabled, the application crashes.

Regards
Dietmar

Start by reproducing the crash from Privatezilla's update-checking action with the Windows firewall enabled, then capture the exception and identify the update-checking entry point. Compare behavior with the firewall disabled and add a regression test or verification step showing that checking for updates no longer crashes.

Written by the indexing model from the issue text.