Privoxy very occasionally fatally hangs when it is disabled via right-clicking on the tasktray icon and unchecking "Enable".
CPU time drops to zero and there is no further response to right-clicks. Any communication in progress is interrupted. The only resolution is to kill the process.
I've had this happen twice since I upgraded to 3.0.19 on 2012-04-03. I disable/enable Privoxy frequently as my filters intentionally strip features of some sites that I occasionally need to re-enable. There is no information in the Privoxy log or system event log. I use both Chrome and Seamonkey as browsers and both were in use at the time of the failure. I also had several tabs open in each browser so I don't know which site was actually being accessed at the time. Killing the process appears to keep the final log entries from being flushed to the disk since the last entry in the Privoxy log is from over 10 minutes prior to the hang.
Sorry I can't give any more information. Is there something you'd like me to do if it happens again? Would you like me to upload my config & user files?
Privoxy version 3.0.19
Windows XP Pro SP3
External router and switch in use