Called before processing each request. For batch requests, it is called one time for the top batch request and one time for each operation in the batch.
Assembly: System.Data.Services (in System.Data.Services.dll)
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.