Access Specifiers describes as the scope of
accessibility of an Object and its members.
We can control the scope of the member
object of a class using access specifiers. We
are using access specifiers for providing
security of our applications.
Visual Basic .Net provide five access
specifiers , they are as follows :
Public, Private , Protected , Friend and
ProtectedFriend .
continue reading: http://tutorialslodge.com/vb-net-access-specifiers/