techsupportalert.com on Avast

In this site Avast on WIN 7 & Vista it is mentioned

"Many of the protection mechanisms used by Avast rely on interactive Windows services. Support in Windows 7 / Vista 64 for interactive services is intended for use by legacy applications. This places restrictions on the information that can be sent to the user.

What does this mean?

Thanxx
Naren

Nothing, cause it’s wrong.

Where exactly is that mentioned? Link?

Here is the link. Read Antivirus - Avast

http://www.techsupportalert.com/best-free-windows7-vista-64-bit-software.htm

Thanxx
Naren