Yes, I read your post #13, I was reluctant to run any of the files recommended until I got your response to the security check you asked me to run, but
I believe I will go ahead and use the .bat file to disable the zone check entirely.
You're not the first to recommend removing Iobit products, but I've been using their Advanced System Care, in it's various versions, for quite some time and never noticed any malware or adware that I could connect to Iobit. I generally run Ccleaner and Malwarebytes every few days, and M'bytes Anti Rootkit somewhat less often, also AdWcleaner whenever a new update comes out. In the past 8 months or so I think I've found one trojan, and several PUPs. I almost never run Iobit's Malware Fighter, so I can certainly do without it.
I'm going to follow the recommendations from the Windows 7 Forum link you posted, it looks like exactly the solution I'm looking for.