Namespaces in the Windows SharePoint Services Object Model

Article
05/05/2014

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The Windows SharePoint Services object model consists of forty-two namespaces in ten assemblies that are used in SharePoint sites on the server that is running Windows SharePoint Services.

Public Namespaces

The following table lists the public namespaces, identifies their assemblies, and briefly describes namespaces that can be used to customize a deployment.

Name	Assembly	Description
Microsoft.HtmlTrans	Microsoft HtmlTrans Interface (in Microsoft.HtmlTrans.Interface.dll)	Provides an interface for custom conversion applications that deliver HTML versions of documents to users who do not have the required client application or viewer installed on their computers.
Microsoft.SharePoint	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides types and members for working with a top-level site and its subsites or lists.
Microsoft.SharePoint.Administration	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides administrative types and members for managing a Windows SharePoint Services deployment.
Microsoft.SharePoint.Administration.Backup	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides types and members for performing backup and restore operations on SharePoint sites.
Microsoft.SharePoint.ApplicationRuntime	Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Microsoft.SharePoint.Deployment	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides types and members for importing and exporting content between Windows SharePoint Services Web sites.
Microsoft.SharePoint.Dsp	Microsoft.SharePoint.Dsp (in Microsoft.SharePoint.Dsp.dll)	Provides the base class for the data retrieval service adapters used in Windows SharePoint Services.
Microsoft.SharePoint.Dsp.OleDb	Microsoft.SharePoint.Dsp.OleDb (in Microsoft.SharePoint.Dsp.OleDb.dll)	Provides the data retrieval service adapter for performing queries against OLE DB data sources.
Microsoft.SharePoint.Dsp.SoapPT	Microsoft.SharePoint.Dsp.SoapPT (in Microsoft.SharePoint.Dsp.SoapPT.dll)	Provides the data retrieval service adapter for performing pass-through queries against arbitrary Web services.
Microsoft.SharePoint.Dsp.Sts	Microsoft.SharePoint.Dsp.Sts (in Microsoft.SharePoint.Dsp.Sts.dll)	Provides the data retrieval service adapter for performing queries against sites, lists, and document libraries in Windows SharePoint Services.
Microsoft.SharePoint.Dsp.XmlUrl	Microsoft.SharePoint.Dsp.XmlUrl (in Microsoft.SharePoint.Dsp.XmlUrl.dll)	Provides the data retrieval service adapter for performing queries against arbitrary XML data sources.
Microsoft.SharePoint.EmailIntegration	Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Microsoft.SharePoint.Help	Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Microsoft.SharePoint.Help.Constants	Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Microsoft.SharePoint.Help.Search	Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Microsoft.SharePoint.Meetings	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides types and members that can be used to customize Meeting Workspace sites.
Microsoft.SharePoint.MobileControls	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides server controls for rendering the mobile forms and view pages used in SharePoint lists.
Microsoft.SharePoint.Navigation	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides types and members for customizing the navigation structures and site maps of SharePoint Web sites.
Microsoft.SharePoint.Search.Administration	Microsoft.SharePoint.Search (in Microsoft.SharePoint.Search.dll)
Microsoft.SharePoint.Search.Query	Microsoft.SharePoint.Search (in Microsoft.SharePoint.Search.dll)
Microsoft.SharePoint.Security	Microsoft SharePoint Security (in Microsoft.SharePoint.Security.dll)	Provides a set of code access permission and attribute classes designed to protect a specific set of resources and operations, such as access to the Windows SharePoint Services object model, the ability to do unsafe saving on HTTP Gets, and enabling point-to-point Web Part connections.
Microsoft.SharePoint.SoapServer	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Contains classes that implement the Windows SharePoint Services Web Service and Web services for working with Web Part pages and Web Parts. In most cases, the members of these classes are not designed to be called from the server but remotely from client applications.
Microsoft.SharePoint.StsAdmin	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides an interface for creating custom operations to run at the command prompt in STSADM.EXE.
Microsoft.SharePoint.Upgrade	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides types and members for upgrading a Windows SharePoint Services deployment.
Microsoft.SharePoint.Utilities	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides utilities for encoding strings and processing user information.
Microsoft.SharePoint.WebControls	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides server controls that are used on site and list pages in a SharePoint site.
Microsoft.SharePoint.WebPartPages	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides classes, interfaces, and members for creating custom Web Parts and Web Part pages
Microsoft.SharePoint.WebPartPages.Communication	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides a set of interfaces and their supporting classes and members that can be implemented in the class of a custom Web Part to support creating connections with other Web Parts.
Microsoft.SharePoint.Workflow	Microsoft.SharePoint (in Microsoft.SharePoint.dll)	Provides types and members for associating, initiating, and managing workflow templates and instances.
Microsoft.SharePoint.WorkflowActions	microsoft.sharepoint.WorkflowActions (in microsoft.sharepoint.WorkflowActions.dll)	Provides types that represent workflow activities. These activities can be assembled into workflow activities.

Internal Namespaces

The types and members of namespaces listed in the following table support Windows SharePoint Services and are not intended to be used directly from your code.

Namespace	Assembly
Microsoft.SharePoint.ApplicationPages	Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Microsoft.SharePoint.ApplicationPages.WebControls	Microsoft.SharePoint (in Microsoft.SharePoint.dll)
N:Microsoft.SharePoint.DirectorySoap	Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Microsoft.SharePoint.Search.Internal.Protocols	Microsoft.SharePoint.Search (in Microsoft.SharePoint.Search.dll)
Microsoft.SharePoint.Search.Internal.Protocols.SharePoint2001	Microsoft.SharePoint.Search (in Microsoft.SharePoint.Search.dll)
Microsoft.SharePoint.Search.Internal.Protocols.SharePoint2003	Microsoft.SharePoint.Search (in Microsoft.SharePoint.Search.dll)
Microsoft.SharePoint.Search.Internal.Protocols.SharePoint2006	Microsoft.SharePoint.Search (in Microsoft.SharePoint.Search.dll)
Microsoft.SharePoint.Search.Internal.Protocols.SharePointPortal2003	Microsoft.SharePoint.Search (in Microsoft.SharePoint.Search.dll)
Microsoft.SharePoint.Search.Internal.Protocols.SiteData	Microsoft.SharePoint.Search (in Microsoft.SharePoint.Search.dll)
Microsoft.SharePoint.Search.Internal.Protocols.SPSCrawl	Microsoft.SharePoint.Search (in Microsoft.SharePoint.Search.dll)
Microsoft.SharePoint.Search.Internal.UI	Microsoft.SharePoint.Search (in Microsoft.SharePoint.Search.dll)
N:Microsoft.SharePoint.Search.Internal.WebControls	Microsoft.SharePoint.Search (in Microsoft.SharePoint.Search.dll)

Namespaces in the Windows SharePoint Services Object Model

Public Namespaces

Internal Namespaces

See Also

Other Resources

Additional resources