identify programs with "call home" priviledges???

How can I identify all programs with "call home" priviledges?  Years ago, I had the option to do so through a program I had on my computer.  I think it was through Windows Defender or Norton.  But, that was then.  Now, where can I find, identify, and give permission or deny it to programs that are loaded with the ability to "call home."   I have windows XP home edition.  Or, do I have to download a new utility?    Well, actually, I also have one put with Vista and two others with 7.  

                                         Thanks for the info.