Interface source
Interface/Classes/UnrealScript classes for client-window behavior, including inventory, status displays, and zone titles.
Shared resource / Client interface
P286 interface and NWindow sources, L2Editor tools, and a bundled Java-based XDatEditor in one archive.

Inside the download
Interface P286 contains Interface and NWindow UnrealScript sources, an L2Editor directory, and a separate XDatEditor bundle. The editor folder includes its launcher, editor.jar, and supporting Java libraries.
The archive contains 829 files, including 716 .uc source files across its source trees. Browse the verified paths and short source/configuration excerpts below before downloading the original RAR.
Verified file paths and selected contents from the download.
Interface_P286.rar
Interface/Classes/InventoryWnd.uc
Interface/Classes/ZoneTitleWnd.uc
L2Editor/!dec.bat
L2Editor/!strip.bat
NWindow/Classes/ActionAPI.uc
NWindow/Classes/AnimTextureHandle.uc
Interface/Classes/AbilityWnd.uc
Interface/Classes/AbnormalStatusWnd.uc
XDatEditor/build/kernel/editor.jar
XDatEditor/lib/commons-csv-1.2.jar
L2Editor/Default.ini
L2Editor/!UnpackUPackages.bat
XDatEditor/xdat_editor.batSelected verified paths from the archive. This is a file listing, not an in-game screenshot.
Interface/Classes/ZoneTitleWnd.uc
class ZoneTitleWnd extends UICommonAPI;
function OnRegisterEvent()
{
RegisterEvent( EV_BeginShowZoneTitleWnd );
}Class declaration and event-registration excerpt from the included source. Other declarations and methods are omitted.
L2Editor/Default.ini
EditPackages=Core
EditPackages=Engine
EditPackages=Fire
EditPackages=EditorSelected EditPackages lines from the included configuration. Other settings are omitted; this is not a verified build recipe.
Interface/Classes/UnrealScript classes for client-window behavior, including inventory, status displays, and zone titles.
NWindow/Classes/Supporting window handles and client UI API classes.
L2Editor/Windows compiler/editor binaries, configuration files, and batch scripts.
XDatEditor/Java editor JARs, supporting libraries, and a Windows launcher.
Windows L2Editor binaries and Java-based XDatEditor are bundled. The editor launcher references a local JDK 1.8 path. Editor startup, builds, and client compatibility have not been tested.
Shared through L2JBaylee. Original authorship and reuse terms are not documented in this listing; availability here does not grant an open-source license.