Assembly: System.Workflow.Runtime (in System.Workflow.Runtime.dll)
Tracking services manage the tracking profiles available to the runtime tracking infrastructure. A tracking service that implements can provide notifications to the runtime tracking infrastructure when a TrackingProfile for a particular workflow Type either changes or is no longer valid. The runtime tracking infrastructure subscribes to the ProfileUpdated and ProfileRemoved events and updates its cache when these events are raised. This decreases the number of requests for tracking profiles that the runtime tracking infrastructure makes to a tracking service. Note: the runtime tracking infrastructure still uses the overloaded GetProfile methods of the tracking service, but it does not call them as frequently.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.