[Felix The Assassin]

A different approach. A good AV will auto-scan program files during install. A good AV will check the arrangement of associated files within the program. Some 'programs' algorithms fall suspect to a good AV as what it is telling it. IE..Make contact with host vendor to mandate registration, check for updates, yada, yada. Most of the free stuff meets these minimal executions, and therefore you must acknowledge the new releases as user warranted. New products come with their instructions to turn it off to prevent a bad install or warning install.

A finer line azimuth: An excellent AV will pre-scan program files you want to install, then halt install because 'it' sense's something askew. Furthermore, an excellent AV will pre-scan the associated files, and again will halt install until you again manually override. These are the installs that go corrupt, and make for a bad day for everyone involved.

If you trust the program, then trust to turn your AV off. If you question the product, they by all means run a manual scan of the package prior to install.

Lastly, 'most' new software nowadays 'require' an internet connection! Contact with the mother ship is mandatory, that is also why some products ask that all 3rd party to be turned off.

And you thought "Big Brother" was bad because he wanted access to monitor phone calls for national security, and here you are willingly giving your right to protection away to of all entities, a software developer, and hopefully not one from Russia, The Balkans, of Africa!