220.127.116.11 RopGetRulesTable ROP Request Buffer
TableFlags (1 byte): The possible values for these bits are as follows.
U (Bitmask 0x40): This bit is set if the client is requesting that string values in the table be returned as Unicode strings.
x: These unused bits MUST be set to zero (0) by the client. The server SHOULD<3> return an error if these bits are nonzero but can ignore them.