<system.diagnostics>
<trace autoflush="true" indentsize="4">
<listeners>
<!-- First clear existing listeners -->
<clear/>
<!-- Add your listener -->
<add name="logListener"
type="System.Diagnostics.TextWriterTraceListener"
initializeData="gksbgclog.log" />
</listeners>
</trace>
</system.diagnostics>
</configuration>