Error "HRESULT E_FAIL has been returned from a call to a COM component" when adding a reference to a .Net 4 project in Visual Studio 2010

Question

Hi,

I get an Error "HRESULT E_FAIL has been returned from a call to a COM component" when adding a .dll reference to a project in Visual Studio 2010.

The weird thing is, if I make a local copy of the .dll, and reference it locally it's fine. However, if I try and reference it from our shared resources server (\server\release\Common\Payment\v1.0\Libr\23\PaymentServices.dll) - It gives me the above error.

Any ideas?

Thanks in advance!