Developed wcf service for dispalying Hi+system.environment,

I have developed wcf service for dispalying Hi+system.environment,
i am developed windows service for consuming wcf service,
in windows service,onstart()method i have consumed wcf service with
timer event
on time event i have writtem code
StreamWriter sw = null;
sw = new StreamWriter(AppDomain.CurrentDomain.BaseDirectory + "\\LogsFile.txt", true);
sw.WriteLine(message);
sw.Flush();
sw.Close();,

now i have deployed wcf on server,windows services on two machines,
windows service displaying server name in both machines,
now i want clinet machines name