Install & first launch

1. Download the build

Sign in at license.zyper.app with Discord and click Download desktop. You’ll get zyper-aio.exe — a single portable Windows binary.

The download is gated by your Discord login. There is no public download URL.

2. Put it in its own folder

Create a folder like C:\Zyper\ and drop the .exe there.

Always run it from the same folder

Shortcuts with the wrong Start in directory will fail to load updates and config. If you use a shortcut, set its “Start in” to the folder that holds zyper-aio.exe.

3. (Recommended) Add a Defender exclusion

Windows Defender sometimes flags unsigned developer binaries on first run. You can either:

• Click More info → Run anyway on the SmartScreen prompt, or
• Run the helper bat (only present in dev builds): setup-defender-exclusion.bat.

For a permanent fix, add the folder itself as an exclusion in Windows Security → Virus & threat protection → Manage settings → Exclusions.

4. Launch

Double-click zyper-aio.exe. A dark, frameless window opens with a sidebar on the left. You’ll land on a License Activation screen — that’s expected.

If nothing happens when you double-click, it’s almost always one of:

• Defender silently quarantined the binary. Check Protection history.
• The folder is on a network drive or OneDrive sync path with file-locking issues. Move it to a plain local folder like C:\Zyper\.
• An earlier instance is already running. Zyper enforces single-instance via a Win32 named mutex — a second launch silently exits.

Next: Activate your license.