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L2Developers - Lineage II Development Studio
LauncherAny2023

Eclipse Launcher

A branded, fast and secure launcher with delta patching and multi-client support.

Eclipse Launcher

Overview

A Windows launcher for a mid-size server, replacing a third-party updater that antivirus vendors kept flagging.

The challenge

The old launcher did full-file downloads on every patch, wasn't signed, and triggered antivirus warnings that scared away new players.

Our solution

We built a signed .NET/WPF launcher with binary delta patching, resumable downloads from a CDN, integrity verification against a signed manifest with auto-repair, and embedded news and server status from the site API.

Key features

  • Binary delta patching
  • Resumable, CDN-backed downloads
  • Signed manifest + auto-repair
  • Code-signed, antivirus-friendly build
  • Embedded news and live status
  • Multi-client launch

This case study describes the type and scope of work L2Developers delivers. Details are representative.

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