How can i get the location of the GAC using C#?

Question

How can i get the location of the GAC directory using C#?

Exist an entry in the Windows Registry?

UPDATE

I need the

Answer 1

Is it not always %windir%\assembly ?

edit:

c:\Windows>dir \windows\assembly
 Volume in drive C has no label.
 Volume Serial Number is C8BC-2EBD

 Directory of c:\windows\assembly

08/14/2009  03:06 AM              GAC
07/28/2009  03:07 AM              GAC_32
09/08/2009  10:57 PM              GAC_MSIL
08/15/2009  07:35 PM              NativeImages_v2.0.50727_32
09/08/2009  10:57 PM              temp
09/08/2009  09:47 PM              tmp
               0 File(s)              0 bytes
               6 Dir(s)   4,560,822,272 bytes free