Silverlight 5 WinRT

  public sealed enum Cer
  : IComparable, IFormattable, IConvertible
  { None, MayFail, Success }

  public sealed enum Consistency
  : IComparable, IFormattable, IConvertible
  { MayCorruptProcess, MayCorruptAppDomain, MayCorruptInstance, WillNotCorruptState }

public abstract class CriticalFinalizerObject public abstract class CriticalFinalizerObject

  public sealed class PrePrepareMethodAttribute
  : Attribute, _Attribute

  public sealed class ReliabilityContractAttribute
  : Attribute, _Attribute
  public Cer Cer { get; }
  public Consistency ConsistencyGuarantee { get; }