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Welcome to the POLServer.com UO Packet Guide.
Here you will find layouts on the Ultima Online client packets.


04-02-2007: Clients.cfg Latest Client: 5.0.9.1
01-27-2007: Clients.cfg Latest Client: 5.0.7.2
01-27-2007: Clients.cfg Added 5.0.7.1 3D
12-27-2006: Packet 0xA8 Updated.
12-16-2006: Packet 0xBF Subcommand 0x2C Added.


  Packet Name     ID     Size  
Create Character Create Character 0x00 104 bytes
Disconnect Notification Disconnect Notification 0x01 5 bytes
Move Request Move Request 0x02 7 bytes
Talk Request Talk Request 0x03 Variable
Request God Mode (God Client) Request God Mode (God Client) 0x04 2 bytes
Request Attack Request Attack 0x05 5 bytes
Double Click Double Click 0x06 5 bytes
Pick Up Item Pick Up Item 0x07 7 bytes
Drop Item Drop Item 0x08 14 bytes
Single Click Single Click 0x09 5 bytes
Edit (God Client) Edit (God Client) 0x0A 11
Request Skill etc use Request Skill etc use 0x12 Variable
Drop->Wear Item Drop->Wear Item 0x13 10 bytes
Send Elevation (God Client) Send Elevation (God Client) 0x14 6
Request Script Names Request Script Names 0x16 1
Get Player Status Get Player Status 0x34 10 bytes
Add Resource (God Client) Add Resource (God Client) 0x35 653
Move Item (God Client) Move Item (God Client) 0x37 8
Drunken Coder Drunken Coder 0x38 7 Bytes
Buy Item(s) Buy Item(s) 0x3B Variable
Login Character Login Character 0x5D 73 Bytes
Change Text/Emote Colors Change Text/Emote Colors 0x69 5 Bytes
Request War Mode Request War Mode 0x72 5 Bytes
Rename Character Rename Character 0x75 35 Bytes
Response To Dialog Box Response To Dialog Box 0x7D 13 Bytes
Login Request Login Request 0x80 62 Bytes
Delete Character Delete Character 0x83 39 Bytes
Game Server Login Game Server Login 0x91 65 Bytes
Request Help Request Help 0x9B 258 Bytes
Sell List Reply Sell List Reply 0x9F Variable
Select Server Select Server 0xA0 3 Bytes
Client Spy Client Spy 0xA4 Variable
Request Tip/Notice Window Request Tip/Notice Window 0xA7 4 Bytes
Gump Text Entry Dialog Reply Gump Text Entry Dialog Reply 0xAC Variable
Unicode/Ascii speech request Unicode/Ascii speech request 0xAD Variable
Gump Menu Selection Gump Menu Selection 0xB1 Variable
Chat Text Chat Text 0xB3 Variable
Open Chat Window Open Chat Window 0xB5 64 bytes
Send Help/Tip Request Send Help/Tip Request 0xB6 9 Bytes
Spy On Client Spy On Client 0xD9 Variable
Equip Macro (KR) Equip Macro (KR) 0xEC Variable
Unequip Item Macro (KR) Unequip Item Macro (KR) 0xED Variable

  Packet Name     ID     Size  
Damage Damage 0x0B 0x07
Status Bar Info Status Bar Info 0x11 Variable
Object Info Object Info 0x1A Variable
Char Locale and Body Char Locale and Body 0x1B 37 Bytes
Send Speech Send Speech 0x1C Variable
Delete Object Delete Object 0x1D 5 bytes
Draw Game Player Draw Game Player 0x20 19 bytes
Char Move Rejection Char Move Rejection 0x21 8 bytes
Dragging Of Item Dragging Of Item 0x23 26 bytes
Draw Container Draw Container 0x24 7 bytes
Add Item To Container Add Item To Container 0x25 20 bytes
Kick Player Kick Player 0x26 5 bytes
Reject Move Item Request Reject Move Item Request 0x27 2 bytes
Clear Square (God Client?) Clear Square (God Client?) 0x28 5 bytes
Paperdoll Clothing Add Ack Paperdoll Clothing Add Ack 0x29 1 byte
God Mode (God Client) God Mode (God Client) 0x2B 2
Mob Attributes Mob Attributes 0x2D 17 bytes
Worn Item Worn Item 0x2E 15 bytes
Fight Occuring Fight Occuring 0x2F 10 bytes
Attack Ok Attack Ok 0x30 5
Unknown Unknown 0x32 2 Bytes
Pause Client Pause Client 0x33 2 bytes
Items In Container Items In Container 0x3C Variable
Versions (God Client) Versions (God Client) 0x3E 37
Update Statics (God Client) Update Statics (God Client) 0x3F variable
Personal Light Level Personal Light Level 0x4E 6 Bytes
Overall Light Level Overall Light Level 0x4F 2 Bytes
Idle Warning Idle Warning 0x53 2 Bytes
Play Sound Effect Play Sound Effect 0x54 12 Bytes
Login Complete Login Complete 0x55 1 byte
Time Time 0x5B 4 Bytes
Set Weather Set Weather 0x65 4 Bytes
Play Midi Music Play Midi Music 0x6D 3 Bytes
Character Animation Character Animation 0x6E 14 Bytes
Graphical Effect Graphical Effect 0x70 28 Bytes
Open Buy Window Open Buy Window 0x74 Variable
New Subserver New Subserver 0x76 16 Bytes
Update Player Update Player 0x77 17 Bytes
Draw Object Draw Object 0x78 Variable
Open Dialog Box Open Dialog Box 0x7C Variable
Login Denied Login Denied 0x82 2 Bytes
Resend Characters After Delete Resend Characters After Delete 0x86 304 Bytes
Open Paperdoll Open Paperdoll 0x88 66 Bytes
Corpse Clothing Corpse Clothing 0x89 Variable
Connect To Game Server Connect To Game Server 0x8C 11 Bytes
Map Message Map Message 0x90 19 Bytes
Move Player Move Player 0x97 2 Bytes
Sell List Sell List 0x9E Variable
Update Current Health Update Current Health 0xA1 9 Bytes
Update Current Mana Update Current Mana 0xA2 9 Bytes
Update Current Stamina Update Current Stamina 0xA3 9 Bytes
Open Web Browser Open Web Browser 0xA5 Variable
Tip/Notice Window Tip/Notice Window 0xA6 Variable
Game Server List Game Server List 0xA8 Variable
Characters / Starting Locations Characters / Starting Locations 0xA9 Variable
Allow/Refuse Attack Allow/Refuse Attack 0xAA 5 Bytes
Gump Text Entry Dialog Gump Text Entry Dialog 0xAB Variable
Unicode Speech message Unicode Speech message 0xAE Variable
Display Death Action Display Death Action 0xAF 13 Bytes
Send Gump Menu Dialog Send Gump Menu Dialog 0xB0 Variable
Chat Message Chat Message 0xB2 Variable
Help/Tip Data Help/Tip Data 0xB7 Variable
Enable locked client features Enable locked client features 0xB9 3 Bytes
Quest Arrow Quest Arrow 0xBA 6 Bytes
Seasonal Information Seasonal Information 0xBC 3 Bytes
Graphical Effect Graphical Effect 0xC0 36 Bytes
Cliloc Message Cliloc Message 0xC1 Variable
Semivisible (Smurf it!) Semivisible (Smurf it!) 0xC4 6 Bytes
Invalid Map Enable Invalid Map Enable 0xC6 0x1
3D Particle Effect 3D Particle Effect 0xC7 49 Bytes
Global Que Count Global Que Count 0xCB 7 Bytes
Cliloc Message Affix Cliloc Message Affix 0xCC Variable
Extended 0x20 Extended 0x20 0xD2 25 Bytes
Extended 0x78 Extended 0x78 0xD3 Variable
Mega Cliloc Mega Cliloc 0xD6 vaiable
Send Custom House Send Custom House 0xD8 Variable
Character Transfer Log Character Transfer Log 0xDB variable
SE Introduced Revision SE Introduced Revision 0xDC 9
Compressed Gump Compressed Gump 0xDD variable
Buff/Debuff System Buff/Debuff System 0xDF variable
Krrios client special Krrios client special 0xF0 Variable

  Packet Name     ID     Size  
Edit Tile Data (God Client) Edit Tile Data (God Client) 0x0C variable
Follow Follow 0x15 9
Character Move ACK/ Resync Request Character Move ACK/ Resync Request 0x22 3 bytes
Resurrection Menu Resurrection Menu 0x2C 2 bytes
Remove (Unknown) Remove (Unknown) 0x39 9
Send Skills Send Skills 0x3A Variable
Map Packet (cartography/treasure) Map Packet (cartography/treasure) 0x56 11 Bytes
Books (Pages, Old Packet) Books (Pages, Old Packet) 0x66 Variable
Target Cursor Commands Target Cursor Commands 0x6C 19 Bytes
Secure Trading Secure Trading 0x6F Variable
Bulletin Board Messages Bulletin Board Messages 0x71 Variable
Books (Title Page, Old Packet) Books (Title Page, Old Packet) 0x93 99 Bytes
Dye Window Dye Window 0x95 9 Bytes
All Names (3D Client Only) All Names (3D Client Only) 0x98 Variable
Give Boat/House Placement View Give Boat/House Placement View 0x99 26 Bytes
Request/Char Profile Request/Char Profile 0xB8 Variable
Ultima Messenger Ultima Messenger 0xBB 9 Bytes
Client Version Client Version 0xBD Variable
Assist Version Assist Version 0xBE Variable
General Information Packet General Information Packet 0xBF Variable
Unicode TextEntry Unicode TextEntry 0xC2 Variable
Client View Range Client View Range 0xC8 2 Bytes
Get Area Server Ping Get Area Server Ping 0xC9 6 Bytes
Get User Server Ping Get User Server Ping 0xCA 6 Bytes
Configuration File Configuration File 0xD0 Variable
Logout Status Logout Status 0xD1 2 bytes
*New* Book Header *New* Book Header 0xD4 Variable
Generic AOS Commands Generic AOS Commands 0xD7 Variable
Freeshard List Freeshard List 0xF1 Variable

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