For manual installs, recovery, or environments where running an .exe isn't an option. Browsers commonly flag .zip archives that bundle PowerShell scripts, independent of KayraSetup.exe's own signing status. Most people should use the installer above instead.
One-line PowerShell command (downloads everything automatically):
Or, manual ZIP install: download voice-desktop-agent.zip, extract it, then right-click INSTALL_KAYRA.ps1 inside the extracted folder and choose "Run with PowerShell". Full step-by-step instructions (README_WINDOWS_INSTALL.md) are included inside the extracted folder.