This class is used to create a wrapper around a decimal value. Then, when you pass the newly created CurrencyWrapper to an unmanaged method, the object is marshaled as the VT_CURRENCY type.

public sealed class CurrencyWrapper {
// Public Constructors
   public CurrencyWrapper(decimal obj);
   public CurrencyWrapper(object obj);
// Public Instance Properties
   public decimal WrappedObject{get; }
}