I am still struggling with this. I mailed Customer Care at Zone Labs some time ago but they haven't yet bothered to reply. I purchased a program called "Regcare" which I had hopes for because it was advertising as being able to clear up the problems relating to this particular error code. Unfortunately, it didn't work, though, they are currently working on the problem for me. If I get a result I will post it. Could I ask whether you are a user of the AVG virus checker program? I used to run this in conjunction with Zone Alarm but then I uninstalled. Now, I have just found an earlier AVG install file located in my Zone Alarm program files and I am wondering if this is causing the problem?