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Editorial Team
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Asked: 2026-05-23T08:23:25+00:00

I need to use Server class which is stored in Microsoft.SqlServer.Smo.dll I don’t see

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I need to use Server class which is stored in Microsoft.SqlServer.Smo.dll I don’t see this assembly in usual References dialog. I have found it at C:/Program Files/Microsoft SQL Server/100/SDK/Assemblies and try to reference from there but Visual Studio throws an error “A reference ‘C:/Program Files/Microsoft SQL Server/100/SDK/Assemblies/Microsoft.SqlServer.Smo.dll’ could not be added. Please make sure that file is accessible, and that it is a valid assembly or COM component”. What am I doing wrong?

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  1. Editorial Team

    C:\Program Files\Microsoft SQL Server\100\SDK\Assemblies is the correct folder location (or C:\Program Files (x86)\Microsoft SQL Server\100\SDK\Assemblies on 64-bit systems).

    You need to add references to:

    • Microsoft.SqlServer.ConnectionInfo.dll

    • Microsoft.SqlServer.Smo.dll

    • Microsoft.SqlServer.Management.Sdk.Sfc.dll

    • Microsoft.SqlServer.SqlEnum.dll

    (These are the minimum files that are required to build an SMO application)

    For SQL Server 2016, this location is C:\Program Files (x86)\Microsoft SQL Server\130\SDK\Assemblies (for the 64bit version).

    Ref.: How to: Create a Visual C# SMO Project in Visual Studio .NET

    The SQL Server Management Objects (SMO) are downloadable as part of the relevant SQL Server (20XX) Feature Pack (check the smallprint as I don’t believe these are redistributable?)

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