How to reference assemblies in managed c++/cli which are in GAC

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C++/CLI

i do have assembly named MyNamespace.Shared.Library.dll in GAC folder.

I want to use it in my managed c++ code.which i did it two ways.

case 1

#using <C:\Windows\Microsoft.NET\assembly\GAC_MSIL\MyNameSpace.Shared.Library\v4.0_3.0.0.0__97f06817abd0bb0a\MyNameSpace.Shared.Library.dll

Now if i uses it working fine.but i dont want to do it in this way.

Case 2:
open Project properties tab

open Configuration properties -> General

Select Resolving #using references

here i give the complete path of the dll.
But in this case i am not able to use its namespace.
compiler generate error for not finding namespace or fucntion which i am using.
Note: in both the case code is same but using reference has been changed and i am writing this code in VS 2010