On Linux you can clone the current process with os.fork(). The child returns 0, the parent receives the child PID. Use os.getpid() to inspect the current PID and os.getppid() to check the parent.
I upgraded a Chinese SecureCRT 6 install to the English 7.2.5 release. Sessions carried over, but opening one showed the firewall '无' was not found in the database. This session will attempt to connect without a firewall.