asfdem, shgoh....
It appears that the chart is clearly in error.
Avast 4.1.280 Home will install 5 modules including P2P and Instant Messenger.
The differences between Home and Pro are sutble.
As you can see, Home does not provide Script protection whereas Pro does. With Home, you can add a 3rd party program such as AnalogX Script Defender.
In addition, the Pro version allows the user to select which of the On Access modules they wish to install.
The Pro will allow the user more advanced configuration than the Home.
BUT BOTH PROTECT EQUALLY WELL!
If you are a set and forget type of person, I would recommend you stick with the Home version for now.
but if your like me and always want to putter around with things...then go for it!....Avast Pro.
techie