Files and Version Numbers

APPLIES TO: yesSQL Server yesAzure SQL Database yesAzure SQL Data Warehouse noParallel Data Warehouse

All required SQL Server Management Object (SMO) components are included in the Microsoft.SqlServer.SqlManagementObjects NuGet package. SMO is implemented in several managed assemblies. You can develop SMO applications on either a client or a server.


The file version of the SMO assemblies is displayed as Major.0.Build.Revision. But the embedded assembly version is Major.100.Build.Revision. This is done to keep the version of SMO used in each application separate so updates to one doesn't affect any others.

Because of this you should not install these versions of the assemblies to the Global Assembly Cache (GAC). Doing so could cause other applications, such as SQL Server Management Studio, to break.

File Description
Microsoft.SqlServer.ConnectionInfo.dll Contains support for connecting to an instance of SQL Server.
Microsoft.SqlServer.ServiceBrokerEnum.dll Contains support for programming the Microsoft Service Broker. This is required only in programs that access the Service Broker.
Microsoft.SqlServer.Smo.dll Contains the most of the SMO classes.


Contains support for the SMO classes.
Microsoft.SqlServer.WmiEnum.dll Contains the Windows Management Instrumentation (WMI) Provider classes. This is required only for programs that use the WMI Provider classes.
Microsoft.SqlServer.RegSvrEnum.dll Contains the Registered Server classes. This is required only for programs that use the Registered Server classes.