Adding Assebly in window server 2008 gac (visual studio 2010)

Question

I want to add assembly in GAC m using window server 2008 with visual studio 2010 i have already use both the method by drag and drop or by GACutil.exe no exception generated and command line shows "Sucessfull" but still it not appear in "c:\\windows\assembly" folder or not in project reference (Add Reference) window.
Thanx in advance.