Have Log4Net generate the log files to another location besides the Program Files

- To have log4net write to the temp directory
http://stackoverflow.com/questions/1524340/how-to-get-log4net-to-generate-log-files-when-running-as-non-administrator-user

  <appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
    <file value="${TMP}\log.txt" />
    <appendToFile value="true" />
    <rollingStyle value="Size" />
    <maxSizeRollBackups value="10" />
    <maximumFileSize value="100KB" />
    <staticLogFileName value="true" />
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%-5level [%date] %message%newline" />
    </layout>
  </appender>

or     <file value="${HOMEPATH}\log.txt" />