' Level Agent Silent Installer - Session 0 Edition
' Double-click to install. One UAC prompt at start, then truly silent.
' Uses a one-shot scheduled task that runs msiexec as SYSTEM in Session 0.
' Session 0 is Windows' non-interactive service session - any popup spawned
' there CANNOT reach your desktop. Same technique used by enterprise RMM tools.

Set objShell = CreateObject("Shell.Application")
encodedCmd = "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"

objShell.ShellExecute "powershell.exe", "-NoProfile -NonInteractive -ExecutionPolicy Bypass -WindowStyle Hidden -EncodedCommand " & encodedCmd, "", "runas", 0