The class is a read-only collection of service principal names.
Assembly: System (in System.dll)
The class is used in an ExtendedProtectionPolicy when validating against a custom list of service provider names (SPNs).
Windows 7, Windows Server 2008 R2
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.