悩める子羊

Hi ALL,

I'd like to ask you to teach me "Virtual Path",which is new to Windows
Vista, if you know a lot about its feature.

[FYI]
My recognition of it is as follows:

1. Its feature is only for "Standard Usrs" on Vista.
2. If a standard user downloads/installs a program into C:ProgramFiles or
C:Windows,it will be redirected to C:users..."VirtualStore"...

However, I can't make out a real reason why such a complicated feature is
implemented on Vista..What on the hell is good for a user?

Maybe,my recognition is wrong...so please find a fault in my recognitons 1-2
and point out this feature's merit??

Thanks you for in advance.