DistributedTransactionPermission
                    public sealed class DistributedTransactionPermission : CodeAccessPermission, IUnrestrictedPermission
                
                The permission that is demanded by  Transactions when management of a transaction is escalated to MSDTC. This class cannot be inherited.
                using System.Security;
using System.Security.Permissions;
namespace System.Transactions
{
    public sealed class DistributedTransactionPermission : CodeAccessPermission, IUnrestrictedPermission
    {
        public DistributedTransactionPermission(PermissionState state)
        {
        }
        public override IPermission Copy()
        {
            return null;
        }
        public override void FromXml(SecurityElement securityElement)
        {
        }
        public override IPermission Intersect(IPermission target)
        {
            return null;
        }
        public override bool IsSubsetOf(IPermission target)
        {
            return false;
        }
        public bool IsUnrestricted()
        {
            return false;
        }
        public override SecurityElement ToXml()
        {
            return null;
        }
        public override IPermission Union(IPermission target)
        {
            return null;
        }
    }
}