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System.EnterpriseServices Namespace

The System.EnterpriseServices namespace provides an important infrastructure for enterprise applications. COM+ provides a services architecture for component programming models deployed in an enterprise environment. This namespace provides .NET objects with access to COM+ services making the .NET Framework objects more practical for enterprise applications.

For information about using System.EnterpriseServices, see Writing Serviced Components

  Class Description
Public class Activity Creates an activity to do synchronous or asynchronous batch work that can use COM+ services without needing to create a COM+ component. This class cannot be inherited.
Public class ApplicationAccessControlAttribute Specifies access controls to an assembly containing ServicedComponent classes.
Public class ApplicationActivationAttribute Specifies whether components in the assembly run in the creator's process or in a system process.
Public class ApplicationIDAttribute Specifies the application ID (as a GUID) for this assembly. This class cannot be inherited.
Public class ApplicationNameAttribute Specifies the name of the COM+ application to be used for the install of the components in the assembly. This class cannot be inherited.
Public class ApplicationQueuingAttribute Enables queuing support for the marked assembly and enables the application to read method calls from Message Queuing queues. This class cannot be inherited.
Public class AutoCompleteAttribute Marks the attributed method as an AutoComplete object. This class cannot be inherited.
Public class BYOT Wraps the COM+ ByotServerEx class and the COM+ DTC interfaces ICreateWithTransactionEx and ICreateWithTipTransactionEx. This class cannot be inherited.
Public class ComponentAccessControlAttribute Enables security checking on calls to a component. This class cannot be inherited.
Public class COMTIIntrinsicsAttribute Enables you to pass context properties from the COM Transaction Integrator (COMTI) into the COM+ context.
Public class ConstructionEnabledAttribute Enables COM+ object construction support. This class cannot be inherited.
Public class ContextUtil Obtains information about the COM+ object context. This class cannot be inherited.
Public class DescriptionAttribute Sets the description on an assembly (application), component, method, or interface. This class cannot be inherited.
Public class EventClassAttribute Marks the attributed class as an event class. This class cannot be inherited.
Public class EventTrackingEnabledAttribute Enables event tracking for a component. This class cannot be inherited.
Public class ExceptionClassAttribute Sets the queuing exception class for the queued class. This class cannot be inherited.
Public class IISIntrinsicsAttribute Enables access to ASP intrinsic values from ContextUtil.GetNamedProperty. This class cannot be inherited.
Public class InterfaceQueuingAttribute Enables queuing support for the marked interface. This class cannot be inherited.
Public class JustInTimeActivationAttribute Turns just-in-time (JIT) activation on or off. This class cannot be inherited.
Public class LoadBalancingSupportedAttribute Determines whether the component participates in load balancing, if the component load balancing service is installed and enabled on the server.
Public class MustRunInClientContextAttribute Forces the attributed object to be created in the context of the creator, if possible. This class cannot be inherited.
Public class ObjectPoolingAttribute Enables and configures object pooling for a component. This class cannot be inherited.
Public class PrivateComponentAttribute Identifies a component as a private component that is only seen and activated by components in the same application. This class cannot be inherited.
Public class RegistrationConfig Provides configuration information for installing assemblies into the COM+ catalog.
Public class RegistrationErrorInfo Retrieves extended error information about methods related to multiple COM+ objects. This also includes methods that install, import, and export COM+ applications and components. This class cannot be inherited.
Public class RegistrationException The exception that is thrown when a registration error is detected.
Public class RegistrationHelper Installs and configures assemblies in the COM+ catalog. This class cannot be inherited.
Public class RegistrationHelperTx Infrastructure. Obsolete. Used by the .NET Framework infrastructure to install and configure assemblies in the COM+ catalog while maintaining a newly established transaction.
Public class ResourcePool Stores objects in the current transaction. This class cannot be inherited.
Public class SecureMethodAttribute Ensures that the infrastructure calls through an interface for a method or for each method in a class when using the security service. Classes need to use interfaces to use security services. This class cannot be inherited.
Public class SecurityCallContext Describes the chain of callers leading up to the current method call.
Public class SecurityCallers Provides an ordered collection of identities in the current call chain.
Public class SecurityIdentity Contains information that regards an identity in a COM+ call chain.
Public class SecurityRoleAttribute Configures a role for an application or component. This class cannot be inherited.
Public class ServiceConfig Specifies and configures the services that are to be active in the domain which is entered when calling Enter or creating an Activity. This class cannot be inherited.
Public class ServicedComponent Represents the base class of all classes using COM+ services.
Public class ServicedComponentException The exception that is thrown when an error is detected in a serviced component.
Public class ServiceDomain Allows a code segment identified by Enter and Leave to run in its own context and behave as if it were a method that is called on an object created within the context. This class cannot be inherited.
Public class SharedProperty Accesses a shared property. This class cannot be inherited.
Public class SharedPropertyGroup Represents a collection of shared properties. This class cannot be inherited.
Public class SharedPropertyGroupManager Controls access to shared property groups. This class cannot be inherited.
Public class SynchronizationAttribute Sets the synchronization value of the component. This class cannot be inherited.
Public class TransactionAttribute Specifies the type of transaction that is available to the attributed object. Permissible values are members of the TransactionOption enumeration.

  Structure Description
Public structure BOID Represents the unit of work associated with a transaction. This structure is used in XACTTRANSINFO.
Public structure XACTTRANSINFO Represents a structure used in the ITransaction interface.

  Interface Description
Public interface IAsyncErrorNotify Implements error trapping on the asynchronous batch work that is submitted by the Activity object.
Public interface IPlaybackControl Functions in Queued Components in the abnormal handling of server-side playback errors and client-side failures of the Message Queuing delivery mechanism.
Public interface IProcessInitControl Supports setting the time-out for the Startup method.
Public interface IProcessInitializer Supports methods that can be called when a COM component starts up or shuts down.
Public interface IRegistrationHelper Installs and configures assemblies in the COM+ catalog.
Public interface IRemoteDispatch Infrastructure. Implemented by the ServicedComponent class to determine if the AutoCompleteAttribute class attribute is set to true or false for a remote method invocation.
Public interface IServiceCall Implements the batch work that is submitted through the activity created by Activity.
Public interface IServicedComponentInfo Infrastructure. Implemented by the ServicedComponent class to obtain information about the component via the GetComponentInfo method.
Public interface ITransaction Corresponds to the Distributed Transaction Coordinator (DTC) ITransaction interface and is supported by objects obtained through ContextUtil.Transaction.

  Delegate Description
Public delegate ResourcePool.TransactionEndDelegate Represents the method that handles the ending of a transaction.

  Enumeration Description
Public enumeration AccessChecksLevelOption Specifies the level of access checking for an application, either at the process level only or at all levels, including component, interface, and method levels.
Public enumeration ActivationOption Specifies the manner in which serviced components are activated in the application.
Public enumeration AuthenticationOption Specifies the remote procedure call (RPC) authentication mechanism. Applicable only when the ActivationOption is set to Server.
Public enumeration BindingOption Indicates whether all work submitted by Activity should be bound to only one single-threaded apartment (STA). This enumeration has no impact on the multithreaded apartment (MTA).
Public enumeration ImpersonationLevelOption Specifies the level of impersonation allowed when calling targets of a server application.
Public enumeration InheritanceOption Indicates whether to create a new context based on the current context or on the information in ServiceConfig.
Public enumeration InstallationFlags Flags used with the RegistrationHelper class.
Public enumeration PartitionOption Indicates the context in which to run the COM+ partition.
Public enumeration PropertyLockMode Specifies the mode for accessing shared properties in the shared property group manager.
Public enumeration PropertyReleaseMode Specifies the release mode for the properties in the new shared property group.
Public enumeration SxsOption Indicates how side-by-side assemblies are configured for ServiceConfig.
Public enumeration SynchronizationOption Specifies the type of automatic synchronization requested by the component.
Public enumeration ThreadPoolOption Indicates the thread pool in which the work, submitted by Activity, runs.
Public enumeration TransactionIsolationLevel Specifies the value of the TransactionAttribute.
Public enumeration TransactionOption Specifies the automatic transaction type requested by the component.
Public enumeration TransactionStatus Indicates the transaction status.
Public enumeration TransactionVote Specifies the values allowed for transaction outcome voting.
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