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WindowsSecurityToken::ValidFrom Property
Visual Studio 2010
Gets the first instant in time at which this security token is valid.
Assembly: System.IdentityModel (in System.IdentityModel.dll)
The ValidFrom property is set to the instant in time when the WindowsSecurityToken class is created.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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