Desktop Helper

A small bridge app for automatic in-game data and one-click runes
Download and install →

Windows will show a warning — that's expected

The first time you run the program, Windows opens a blue window. It does not say "this file is harmful"; it says "I don't recognise this publisher yet". The reason is simple: the file isn't digitally signed and it was published recently.

Windows protected your PC
Microsoft Defender SmartScreen prevented an unrecognised app from starting.
  1. In that window, click: More info
  2. Then press the button that appears: Run anyway

The only way this screen goes away is for Windows to see enough people run the program without trouble. Every new program goes through this stage. You don't have to take our word for it — below you can check the source and the file's fingerprint yourself.

Why is it needed?

LoL Duel now runs on the web. For security, browsers don't let a website read the game client on your computer directly. This small app is the bridge: it reads data from the client, hands it to the site, and writes the rune page the site computed back to the client. The site works fully without it — you just pick your champion and opponent by hand.

What it does

  • Reads the items the enemy buys during the match and updates the advice automatically.
  • Sees enemy picks in champ select and shows their counters instantly.
  • Writes the computed rune page to the client in one click (or automatically).

What it doesn't do

  • Sends nothing to the internet and stores nothing.
  • Doesn't interfere with the game or play anything for you.
  • Uses only the local interfaces Riot itself permits.

Setup

  1. Download the ZIP, extract the folder and run LoLDuelYardimci inside it (no installation needed).
  2. In the window that opens, click "Open the site and pair".
  3. That's it. Keep it running while you play; close it and the site falls back to manual mode.

Security

The bridge listens only on your own machine (127.0.0.1) and can't be reached from outside. Only allowed site addresses get a response, and writing runes requires the pairing key — a site in another tab can't write to your client.

Check it yourself

We're not asking you to trust us; we're giving you things you can verify. The program's full source code is public, and the file you download is built from that code by GitHub's own servers, not by us.

Fingerprint (SHA-256) of the published ZIP. It must match the file you downloaded — you can check in PowerShell:

9124792d4296f814d18317519a67c6c0271393700b3d75034e7da5ddf11b9ea7 Get-FileHash .\LoLDuelYardimci.zip -Algorithm SHA256