Give Full access to C:\Windows\Assembly (Win Vista)

Hi,

We are using Windows Server 2003 OS and Visual Studio 2005. When user trying
drag and drop .dll files in c:\windows\assembly folder we gets

"Assembly cache viewer- install failed"
Access is Denied: 'FileName.dll'.

I knew this definately a some permissions issue. i.e user need to have
permission to update the GAC...not having admin permissions!!!

How I can give more permissions to user?

I wrote a BATCH File:

icacls C:\Windows\assembly /C /Grant "Users"F)
icacls C:\Windows\assembly /C /Grant "Users"CI)
icacls C:\Windows\assembly /C /Grant "Users"OI)
icacls C:\Windows\assembly /C /Grant "Users"IO)
icacls C:\Windows\assembly /C /Grant "Power Users"F)
icacls C:\Windows\assembly /C /Grant "Power Users"CI)
icacls C:\Windows\assembly /C /Grant "Power Users"OI)
icacls C:\Windows\assembly /C /Grant "Power Users"IO)

but i still get this error message...

can you help me???

THANK YOU!