COM+ Interfaces

The following are the COM+ interfaces.

Interface	Description
ContextInfo	Retrieves transaction, activity, and context information on the current context object.
ContextInfo2	Provides additional information about an object's context, supplementing the information that is available through the ContextInfo interface.
IAppDomainHelper	Binds a managed object to an application domain, which is an isolated environment where applications execute.
IAssemblyLocator	Retrieves information about an assembly when using managed code in the .NET Framework common language runtime.
IAsyncErrorNotify	Used to implement error trapping on the asynchronous batch work that is submitted through the activity created by CoCreateActivity.
ICheckSxSConfig	Used to check the configuration of the current side-by-side assembly.
IComActivityEvents	Notifies the subscriber if an activity is created, destroyed, or timed out.
IComAppEvents	Notifies the subscriber if a COM+ server application is started, shut down, or forced to shut down.
IComApp2Events	Notifies the subscriber if a COM+ server application is loaded, shut down, or paused.
IComCRMEvents	Notifies the subscriber about activities of the Compensating Resource Manager (CRM) feature of Component Services.
IComExceptionEvents	Notifies the subscriber when an unhandled exception occurs in the user's code.
IComIdentityEvents	Notifies the subscriber about an activity that is part of an Internet Information Services (IIS) Active Server Pages (ASP) page.
IComInstanceEvents	Notifies the subscriber of an object's creation or release.
IComInstance2Events	Notifies the subscriber if an object is created or released by a client.
ICOMLBArguments	Used to activate the COM+ component load balancing service.
IComLTxEvents	Notifies the subscriber of events that relate to COM+ transactions.
IComMethodEvents	Notifies the subscriber if an object's method has been called, returned, or generated an exception.
IComMethod2Events	Notifies the subscriber if an object's method has been called, returned, or generated an exception.
IComObjectConstructionEvents	Notifies the subscriber if a constructed object is created in an object pool.
IComObjectConstruction2Events	Notifies the subscriber if a constructed object is created.
IComObjectEvents	Notifies the subscriber if an instance of a just-in-time (JIT) activated object has been created or freed.
IComObjectPoolEvents	Notifies the subscriber when a new object is added to the pool.
IComObjectPool2Events	Notifies the subscriber if a transactional or non-transactional object is added to or obtained from the object pool.
IComObjectPoolEvents2	Notifies the subscriber when a new object is created for or removed from the pool.
IComQCEvents	Notifies the subscriber if a queued message is created, de-queued, or moved to a retry or dead letter queue.
IComResourceEvents	Notifies the subscriber if a resource is created, allocated, tracked, or destroyed.
IComSecurityEvents	Notifies the subscriber if the authentication of a method call succeeded or failed.
IComThreadEvents	Notifies the subscriber if a single-threaded apartment (STA) is created or terminated, and when an apartment thread is allocated.
IComTrackingInfoCollection	Retrieves the type of a tracking information collection and the number of objects it contains.
IComTrackingInfoEvents	Notifies the subscriber when the tracking information for a collection changes.
IComTrackingInfoObject	Retrieves the properties of a tracking information object.
IComTrackingInfoProperties	Retrieves the total number of properties associated with a tracking information object and their names.
IComTransactionEvents	Notifies the subscriber if the Microsoft Distributed Transaction Coordinator (DTC) transaction starts, commits, or aborts.
IComTransaction2Events	Notifies the subscriber if a Microsoft Distributed Transaction Coordinator (DTC) transaction starts, commits, or aborts. The subscriber is also notified when the transaction is in the prepare phase of the two-phase commit protocol.
IComUserEvent	Notifies the subscriber of the specified user-defined metrics.
IContextProperties	Provides access to context object properties.
IContextState	Controls object deactivation and transaction voting by manipulating context state flags.
IContextTransactionInfo	Provides access to context object properties that relate to transactions.
ICreateWithLocalTransaction	Creates a COM+ object that executes within the scope of the specified local transaction.
ICreateWithTipTransactionEx	Creates an object that is enlisted within a manual transaction using the Transaction Internet Protocol (TIP).
ICreateWithTransactionEx	Creates an object that is enlisted within a manual transaction.
ICrmCompensator	Delivers unstructured log records to the CRM Compensator when using Microsoft Visual C++.
ICrmCompensatorVariants	Delivers structured log records to the CRM Compensator when using Microsoft Visual Basic.
ICrmFormatLogRecords	Converts the log records to viewable format so that they can be presented using a generic monitoring tool.
ICrmLogControl	Is the means by which the CRM Worker and CRM Compensator write records to the log and make them durable.
ICrmMonitor	Captures a snapshot of the current state of the CRM and holds a specific CRM clerk.
ICrmMonitorClerks	Retrieves information about the state of clerks.
ICrmMonitorLogRecords	Monitors the individual log records maintained by a specific CRM clerk for a given transaction.
IDispenserDriver	Is called by the holder of the COM+ Resource Dispenser to create, enlist, evaluate, and destroy a resource.
IDispenserManager	Connects to the Dispenser Manager.
IEnumEventObject	Enumerates the event objects that are registered in the COM+ events store.
IEnumNames	Enumerates names.
IEventClass	Associates a class of event objects with the event interface those objects implement.
IEventClass2	Used to set and obtain data on event class objects.
IEventControl	Controls the behavior of an event object, the object that fires an event to its subscribers.
IEventObjectChange	Notifies subscribers of changes to the event store.
IEventObjectChange2	Notifies subscribers of changes to the event store while including partition and application ID information.
IEventObjectCollection	Manages objects in an event objects collection.
IEventProperty	Stores event properties.
IEventSubscription	Specifies information about the relationship between an event subscriber and an event to which it is subscribing.
IEventSubscription2	Extends the IEventSubscription interface.
IEventSubscription3	Extends the IEventSubscription2 interface.
IEventSystem	Provides access to the event data store.
IEventSystem2	Extends the IEventSystem interface.
IFiringControl	Fires an event to a single subscription.
IGetAppTrackerData	Enables administrative applications to retrieve statistical information about running COM+ applications.
IGetContextProperties	Enables the caller to obtain the properties associated with the current object's context.
IGetSecurityCallContext	Retrieves a reference to an object created from the SecurityCallContext class that is associated with the current call.
IHolder	Allocates or frees resources for an installed Resource Dispenser.
IManagedActivationEvents	Used to create and destroy stubs for managed objects within the current COM+ context.
IManagedObjectInfo	Describes the stub for a managed object.
IManagedPoolAction	Enables an object to be notified before it is released from a COM+ object pool.
IManagedPooledObj	Describes how a managed object is used in the COM+ object pool.
IMessageMover	Moves messages from one queue to another queue.
IMTSActivity	Submits batch work through the activity created by the MTSCreateActivity function.
IMTSCall	Implements the batch work that is submitted through the activity created by the MTSCreateActivity function.
IMtsEventInfo	Describes user-defined events.
IMtsEvents	Provides methods for obtaining information about the running package and establishing event sinks.
IMtsGrp	Provides methods for enumerating through running packages.
IMTSLocator	Describes a single event that provides access to the IMtsEvents interface of the event dispatcher for the current process.
IMTxAS	Equivalent to the following C++ functions: GetObjectContext, RecycleSurrogate, and SafeRef.
IMultiInterfaceEventControl	Controls the behavior of an event object, the object that fires an event to its subscribers.
IMultiInterfacePublisherFilter	Manages a filtered subscription cache for an event method.
IObjectConstruct	Controls the object construction process by passing in parameters from other methods or objects.
IObjectConstructString	Provides access to a constructor string. Use it when you want to specify the parameters during the construction of your object.
IObjectContext	Provides access to the current object's context. An object's context is primarily used when working with transactions or dealing with the security of an object.
IObjectContextActivity	Retrieves the activity identifier associated with the current object context.
IObjectContextInfo	Retrieves transaction, activity, and context information on the current context object.
IObjectContextInfo2	Extends the IObjectContextInfo interface.
IObjectContextTip	Retrieves properties describing the Transaction Internet Protocol (TIP) transaction context.
IObjectControl	Defines context-specific initialization and cleanup procedures for your COM+ objects, and specifies whether the objects can be recycled.
IObjPool	Represents the key to each object in the transaction resource pool.
IPlaybackControl	Enables participation in the abnormal handling of server-side playback errors and client-side failures of the Message Queuing delivery mechanism.
IPoolManager	Enables the caller to control an object pool.
IProcessInitializer	Provides methods that can be called whenever Dllhost.exe starts up or shuts down.
IPublisherFilter	Acts as a callback interface so that event publishers can control which subscribers receive event notifications or the order in which subscribers are notified.
ISecurityCallContext	Provides access to security methods and information about the security call context of the current call.
ISecurityCallersColl	Provides access to information about individual callers in a collection of callers.
ISecurityIdentityColl	Provides access to a collection of security information representing a caller's identity. The items available in this collection are the SID, the account name, the authentication service, the authentication level, and the impersonation level.
ISecurityProperty	Determines the security ID of the current object's original caller or direct caller. However, the preferred way to get information about an object's callers is to use the ISecurityCallContext interface.
ISelectCOMLBServer	Activates the COM+ component load balancing service.
ISendMethodEvents	Describes an event class that notifies subscribers whenever a method on the object that implements it either is called or returns from a call.
IServiceActivity	Used to call the batch work that is submitted through the activity created by CoCreateActivity.
IServiceCall	Used to implement the batch work that is submitted through the activity created by CoCreateActivity.
IServiceComTIIntrinsicsConfig	Configures the COM Transaction Integrator (COMTI) intrinsics for the work that is done when calling the CoCreateActivity or CoEnterServiceDomain function.
IServiceIISIntrinsicsConfig	Configures the IIS intrinsics for the work that is done when calling the CoCreateActivity or CoEnterServiceDomain function.
IServiceInheritanceConfig	Determines whether to construct a new context based on the current context or to create a new context based solely on the information in CServiceConfig.
IServicePartitionConfig	Configures how partitions are used for the work that is done when calling either CoCreateActivity or CoEnterServiceDomain.
IServicePool	Used to manage a COM+ object pool.
IServicePoolConfig	Used to configure an object pool.
IServiceSxSConfig	Configures side-by-side assemblies for the work that is done when calling either CoCreateActivity or CoEnterServiceDomain.
IServiceSynchronizationConfig	Configures the synchronization for the work that is done when calling either CoCreateActivity or CoEnterServiceDomain.
IServiceSysTxnConfig	Enables you to run a set of code in the scope of an existing transaction that you specify with a transaction proxy.
IServiceThreadPoolConfig	Configures the thread pool of the activity object that is returned by calling CoCreateActivity.
IServiceTrackerConfig	Configures the tracker property for the work that is done when calling either CoCreateActivity or CoEnterServiceDomain.
IServiceTransactionConfig	Extends the IServiceTransactionConfigBase interface.
IServiceTransactionConfigBase	Configures the transaction services for the work that is done when calling either CoCreateActivity or CoEnterServiceDomain.
ISharedProperty	Exposes property methods that you can use to set or retrieve the value of a shared property.
ISharedPropertyGroup	Used to create and access the shared properties in a shared property group.
ISharedPropertyGroupManager	Used to create shared property groups and to obtain access to existing shared property groups.
ISystemAppEventData	Notifies the subscriber when a COM+ application instance is created or reconfigured.
IThreadPoolKnobs	Used to control the behavior of thread pools.
ITransactionContext	Enables you to compose the work of multiple COM+ objects in a single transaction and explicitly commit or abort the transaction.
ITransactionContextEx	Extends the ITransactionContext interface to be compatible with Automation.
ITransactionProperty	Used to get the transaction resource pool.
ITransactionProxy	Provides a way for a COM+ transaction context to work with a non-DTC transaction.
ITransactionResourcePool	Maintains a list of pooled objects, keyed by IObjPool, that are used until the transaction completes.
ITransactionStatus	Used to discover the status of the transaction that is completed by the call to CoLeaveServiceDomain when CServiceConfig is configured to use transactions in the call to CoEnterServiceDomain.
ObjectContext	Provides access to the current object's context. An object's context is primarily used when working with transactions or dealing with the security of an object. Provides the same functionality as IObjectContext, but is compatible with Automation.
ObjectControl	Defines context-specific initialization and cleanup procedures for your COM+ objects, and to specify whether the objects can be recycled. Provides the same functionality as IObjectControl, but is compatible with Automation.
SecurityProperty	Enables you to obtain information about the current object's original caller and direct caller.