Compares two System.Security.Principal.NTAccount objects to determine whether they are equal. They are considered equal if they have the same canonical name representation as the one returned by the NTAccount.Value property or if they are both null.
left The left operand to use for the equality comparison. This parameter can be null.right The right operand to use for the equality comparison. This parameter can be null.
true if left and right are equal; otherwise false.