You can navigate to any of the following collections from the Components collection:

• ErrorInfo
  
• InterfacesForComponent
  
• PropertyInfo
  
• RelatedCollectionInfo
  
• RolesForComponent
  
• SubscriptionsForComponent
  

You can navigate to the Components collection from the following collection:

• Applications
  

The COMAdminCatalogObject object within the Components collection supports the following properties:

• AllowInprocSubscribers
  
• ApplicationID
  
• Bitness
  
• CLSID (Key property)
  
• ComponentAccessChecksEnabled
  
• ComponentTransactionTimeout
  
• ComponentTransactionTimeoutEnabled
  
• COMTIIntrinsics
  
• ConstructionEnabled
  
• ConstructorString
  
• CreationTimeout
  
• Description
  
• DLL
  
• EventTrackingEnabled
  
• ExceptionClass
  
• FireInParallel
  
• IISIntrinsics
  
• InitializesServerApplication
  
• IsEnabled
  
• IsEventClass
  
• IsInstalled
  
• IsPrivateComponent
  
• JustInTimeActivation
  
• LoadBalancingSupported
  
• MaxPoolSize
  
• MinPoolSize
  
• MultiInterfacePublisherFilterCLSID
  
• MustRunInClientContext
  
• MustRunInDefaultContext
  
• ObjectPoolingEnabled
  
• ProgID (Name property)
  
• PublisherID
  
• SoapAssemblyName
  
• SoapTypeName
  
• Synchronization
  
• ThreadingModel
  
• Transaction
  
• TxIsolationLevel
  
• VersionBuild
  
• VersionMajor
  
• VersionMinor
  
• VersionSubBuild
  

Enables in process subscribers if the component is an event class.

The GUID for the application containing the component. Must be a valid application's GUID, which is verified before SaveChanges is called. If this value is changed to be a GUID for a different application, the component moves to that application.

Represents the binary bitness type of a component. On systems that use 64-bit Windows, this property distinguishes between 64-bit components and 32-bit components.

A GUID for the component. This property is returned when the Key property method is called on an object of this collection.

Indicates whether role-based access checks are performed on calls into the component and works in conjunction with the AccessChecksLevel and ApplicationAccessChecksEnabled properties on the application.

When used in a transaction, specifies the time period in which this component causes the transaction to time out. The default is 60 seconds and cannot be longer than 3600 seconds (1 hour). The time-out value can be set to 0, specifying an infinite transaction time-out period. For this property to be used, ComponentTransactionTimeoutEnabled must be True. The value of this property overrides the global transaction time-out specified by the TransactionTimeout property of the LocalComputer collection.

Specifies whether the transaction time-out period is enabled for this component. By default, the transaction time-out feature is disabled. When this property is True, the time-out specified by ComponentTransactionTimeout is used. When this property is False, the time-out specified by the TransactionTimeout property of the LocalComputer collection is used.

Enables passing of context properties from the COM Transaction Integrator (COMTI) into the context for this class. The COMTI eases the task of wrapping mainframe transactions and business logic as COM components.

Determines whether the ConstructorString is passed to the object when it is constructed.

Initialization string for component construction. You can create different objects from the same generic component by using object constructor strings. If ConstructionEnabled is False, this property is ignored.

When creating the object, number of milliseconds before a time-out error is returned. The maximum time-out is 2147483647 milliseconds (about 25 days).

Describes the component.

The name and path of the file containing the component.

Determines whether events are tracked. Events include actions such as application shutdown; object creation and release; object references, consistency, activation, and deactivation; method calls, returns, and exceptions; transaction startup, preparing to commit, and abort; resource dispenser connection, allocation, and recycling; thread allocation and recycling.

The CLSID, which can be a GUID or a moniker string, to activate an alternative program during the process of dealing with a repeatedly failing Queued Components program.

Enables events to be fired in parallel if the component is an event class.

Enables passing of IIS context properties, such as an application session object or a user session object, into the context for this class.

Indicates whether the component is used to initialize a server application.

False if the COM+ application or component is disabled. If the COM+ application or component is enabled, IsEnabled is True.

Indicates whether the component is an event class.

Indicates whether the component is installed in an application.

Determines whether a server application is a private component. A private component in a server application can be activated only from within the application. For example, if you call CoCreateInstance on a private component, it fails from out-of-process but succeeds in-process. In contrast, if you call CoCreateInstance on a public component, it succeeds both in-process and out-of-process.

Determines whether JIT Activation is enabled for the component. This property is set to True when Transaction support is set to Required, Requires New, or Supported. When JustInTimeActivation is set to True, Synchronization support must be set to Required (the default) or Requires New.

If the component load balancing service is installed and enabled on the server, determines whether the component participates in load balancing.

Maximum number of objects pooled.

Minimum number of objects pooled.

CLSID for the publisher filter used if the component is an event class.

Indicates that component must be activated in its original caller's context. Otherwise, activation fails.

Indicates that the component must be activated in the default caller's context. Otherwise, activation fails.

Determines whether COM+ Object Pooling is enabled for the component.

A friendly name used for identifying the component. This property is returned when the Name property method is called on an object of this collection.

Identifier for the event publisher if the component is an event class.

A GUID identifying the GAC assembly that is run when the component is invoked as a SOAP service.

The managed type name for a component that can be invoked as a SOAP service.

Determines call synchronization for the component.

Determines how instances of the component are assigned to threads for method execution. Values correspond to COM threading models.

Determines how a component supports transactions. It is recommended that you use the constants in the enumeration and not the numeric values.

Indicates the transaction isolation levels. There are five isolation levels: none, read uncommitted, read committed, repeatable read, and serialized. The default isolation level is serialized.

Version build identifier.

Version identifier.

Version sub-identifier.

Version sub-build identifier.