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Asked: 2026-05-28T13:34:52+00:00

I’m trying to use an alternative core framework library while still targeting .NET Framework

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I’m trying to use an alternative core framework library while still targeting .NET Framework 4.0. When I add a manual reference to the alternate file, Visual Studio instead creates a reference to the same named file in C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\.

Can I disable this behavior?

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1 Answer

  1. Editorial Team

    If the dll is already in the GAC, removing existing dlls will not work.
    Try to mark the reference as Specific Version = true (Right click -> Properties).

    EDIT:
    After you have added the reference (even if the wrong one was actually added), edit your csproj file, find the reference, and edit it with your specific dll properties:

    <Reference Include="Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
  <SpecificVersion>True</SpecificVersion>  
  <HintPath>..\..\ExternalLibrary\Microsoft.Practices.EnterpriseLibrary.Logging.dll</HintPath>
</Reference>
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