> I pointed out to the customer liaison that what the customer is trying to do is very suspicious and looks like a virus. The customer liaison explained that it’s quite the opposite: The customer is a major anti-virus software vendor! The customer has important functionality in their product that that they have built based on this technique of remote code injection, and they cannot afford to give it up at this point.

As an aside, whenever I set up a Windows PC for me or a family member, the first thing I do is uninstall any third-party antivirus that may have come with the computer. I have found that anti-virus software likely makes my computer more insecure by having a big attack surface, not to mention slowing it down.