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A persistence provider throws this exception when it is unable to acquire a lock on an instance because the instance is already locked by another owner.
Assembly: System.Runtime (in System.Runtime.dll)
Windows 7, Windows Vista, Windows XP SP2, 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.