Please pardon my ignorance with this question. I'm testing out multiple Internet Security applications. I'm currently testing ESET, ad I must say that so far it's the best. One thing I don't understand, however, is what the anti-virus/anti-spyware is actually scanning. When I choose "Custom Scan," it gives me the option to choose the "Scan Targets." Listed are my computer drivers as well as an option that says "Operating memory." What exactly is "Operating memory?" Is that just my RAM, or does that include the Windows registry? If it doesn't include the registry, how do I set it up so a scan will scan the registry as well? I've skimmed through the User Guide, but it doesn't explain in detail what exactly "Operating memory" is. It says only, "Scans for threats that attack the operating memory of the system." What does that include? Thank you, mike.