app.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <appSettings>
    <add key="SelfLogLevel" value="Trace"/>
    <add key="SelfLogFile" value="WinService.log"/>
  </appSettings>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6"/></startup></configuration>