4 Odd bytes

[Imperceptus]

Im working on emulating a client for RO, and Im pretty close to being able to login, but I have 4 Bytes of data that I need to make that so far I have been unable to figure out what they are suppose to be.  I have performed multiple captures and they constantly changed.  I tried

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.insertdword gettickcount

which works about 5% of the time.   Can anyone offer some advice as to how i can figure out what I need to send?

[Hdx]

RO = what game?
And for witch part of the protocall are you stuck on?
(What packet)
~-~(HDX)~-~

[Imperceptus]

Ragnarok Online, im stuck on making packet 0x72, its the packet sent to the Game Server before you are privy to the things that go on in the game/world.

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LEN=[19]:  72 00 E8 87 1E 00 57 50 02 00 65 8F A8 6C 88 CB 67 00 01


My Code to used to construct it

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With PacketBuffer
    .InsertBYTE &H72
    .InsertBYTE &H0
    .InsertBYTE &HE8
    .InsertBYTE &H87
    .InsertBYTE &H1E
   
    .InsertBYTE &H0
   
    For N = 1 To 3
        .InsertBYTE Asc(Mid(Character(CharID).Data, N, 1))
    Next N
   
    .InsertBYTE &H0
   
    For N = 1 To 4
        .InsertBYTE Asc(Mid(CharString, N, 1)) '4 bytes
    Next N
   
    .InsertDWORD GetTickCount '<---- This is my problem.
    .InsertBYTE &H1
    .SendPacket frmMain.GS_Socket
End With


[Imperceptus]

well i feel a bit odd, its actually 2 bytes, that are stupid, which doesnt make much sense as to why I would be get 0x73 and the streams that followed, but meh, heres two captures of 72, within a few seconds of each other on the official client.

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00000000  72 00 e8 87 1e 00 57 50  02 00 37 45 fe 44 4c 2a r.....WP ..7E.DL*
00000010  70 00 01                                         p..


00000000  72 00 e8 87 1e 00 57 50  02 00 37 45 fe 44 11 6b r.....WP ..7E.D.k
00000010  70 00 01                                         p..


[NicoQwertyu]

You may need to look at a disassembly of where the actual client builds this packet.

[Imperceptus]

Gotcha, I'll search for one. Thanks.