Zapret2UI
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Getting started

Quick start

From download to a working Discord. The first two steps are usually enough; the rest are for when your provider turns out to be stubborn.

What you need

You do not need to install .NET, Visual C++ or anything else: the program ships as a single self-contained file.

Five steps

  1. Download it and run it as administrator

    Zapret2UI.exe is on the releases page. No installation required: put it wherever you like and run it. Right-click the icon and choose "Run as administrator", or simply accept the UAC prompt.

    Why this is mandatory. The engine has to load the WinDivert network driver into the Windows kernel. Without administrator rights it cannot, and the bypass will not turn on. The shield icon on the launch button is expected.

    On first launch the program downloads the winws2 engine itself and verifies the download against its SHA-256 checksum. That takes a few seconds.

  2. Press "Turn on bypass"

    The big button on the main screen. The status dot above it turns green and the caption changes to "Running".

    Button greyed out, or the bypass dies immediately? Open the "Journal" tab: the reason will be there. Most often it is the antivirus (step 5 below), or the engine has not finished downloading on the very first launch. Wait a minute and try again.

  3. Check Discord and YouTube

    Open the app or the site. In most cases that is where it ends.

    If it does not open, wait five or ten seconds and refresh: connections the browser held open before you turned the bypass on may not re-establish instantly. Still nothing? That is normal — the same technique does not work with every provider. Move on to the next step.

  4. Let it pick a strategy

    The "Diagnostics" tab, the "Select" button. The program launches the ready-made strategies one by one, checks whether the target sites are reachable under each, and keeps the one that opens the most. A window with live progress appears: just wait for it to finish.

    Before that, on the main screen, you can choose the target: Discord + YouTube, Discord or YouTube. The narrower the target, the more precise the result.

    Did not help? In the same place, press "Generate". This takes longer — the program works through many combinations of parameters — but the result is a strategy assembled specifically for your network. It is saved, and from then on you can turn it on with one click.

  5. Deal with the antivirus

    Bypass tools regularly trigger false positives: the engine may be deleted or blocked silently. Settings, the "Add to exclusions" button: one click registers the program and the engine folder with Windows Defender and the firewall.

    If the engine has already been deleted, add the exclusions and then update it from the same Settings tab, or simply restart the program: it will download again.

If none of the steps helped, the symptom-by-symptom breakdown has its own page: Troubleshooting. That is also where the engine's exit codes live, along with the "diagnostics is all green but the site still will not open" case.

Telegram, separately

Telegram is blocked differently from websites: usually by IP address rather than by name. DPI bypass cannot help with that, so the program has a separate built-in proxy that solves the problem another way.

More about how it is built: Interface, the Telegram tab.

Set up once

Once a working strategy is found, people usually never come back to it. Three settings help.

SettingWhat it gives you
Per-network memory
works on its own
A working strategy is tied to the current network by the router's address. Home, work and mobile internet each get their own, and the right one turns on automatically. Everything is stored locally.
Start with Windows The program starts when you log in, already elevated, without a UAC prompt every time. A separate checkbox turns the bypass on straight away as well.
Auto-repair The program watches availability and, if the provider updates its filters and the bypass stops working, quietly picks a working variant again.

Simple and advanced mode

The switch at the top centre of the window.

The main screen in advanced mode: the Home, Strategies, Host lists, Diagnostics, Journal, Telegram, WARP and Settings tabs
Advanced mode adds eight tabs. Simple mode leaves one button, the Telegram and WARP cards and the target selector.

It makes sense to start with simple mode: there is nothing there you can break by accident. Advanced is for when you want to pick a strategy by hand, look at the diagnostics or check the journal. Everything on those tabs is covered in the Interface section.