Hello. Does anyone know what the 'XP Com Event Receiver' does. Recently when shutting down my computer this comes up as a program that is not responding on a regular basis. My computer is becoming very slow to boot up and to shut down recently. Last week I had this message come up 'Dr Watson Postmortem debugger has encountered a problem and will shut down'. I also had another message about ZK Chunk Reader!!!!! Thankfully I haven't seen these messages again, but something must be wrong.