Windows service starts and exits immediately - asp.net

Question

I have written a windows service which in turn calls a web service. When I run the windows service from a test app., it works perfectly. However when I install the service and then start it, it stops almost immediately. The only two entries I see in the log are Constructor and Thread Started. Not sure what is wrong.
public partial class WindowsService : ServiceBase
{
public LogManager.LogFile _log;
public Thread m_thread;
protected TimeSpan m_delay;
CommonFunctions _cf = new CommonFunctions();
DBFunctions _db = new DBFunctions();
public WindowsService()
{
InitializeComponent();
_log = new LogManager.LogFile(#"c:\test\servicelog.txt", true, true);
_log.WriteToLog("Constructor", LogLevel.Level0);
}
protected override void OnStart(string[] args)
{
m_delay = new TimeSpan(0,0,300);
base.OnStart(args);
try
{
m_thread = new System.Threading.Thread(Execute);
m_thread.Start();
_log.WriteToLog("Thread Started", LogLevel.Level0);
}
catch (Exception ex)
{ _log.WriteToLog(ex.Message, LogLevel.Level0); }
}
public void Execute()
{
_log.WriteToLog("Begin Execute...", LogLevel.Level0);
try
{
ProcessNewLMSUsers();
}
catch (Exception ex)
{
_log.WriteToLog(ex.Message.ToString());
}
}
private void ProcessNewLMSUsers()
{
try
{
_log.WriteToLog("Begin: Processing new LMS Users", LogLevel.Level1);
// Check for new users in the LMS.
string callErrorText = "";
bool userAdded = false;
LMSWS.SSO lms = _cf.GetLMSSSOWS(); **// this is a web service**
lms.Timeout = 99999;
}
REST OF THE CODE.................
}

Answer 1

I can't see there is anything wrong with your code. but you can try to put a "Thread.Sleep(20000); " code at the begining of OnStart method. e.g.
protected override void OnStart(string[] args)
{
Thread.Sleep(20000);
m_delay = new TimeSpan(0,0,300); //set a break-point here
base.OnStart(args);
try
{
m_thread = new System.Threading.Thread(Execute);
m_thread.Start();
_log.WriteToLog("Thread Started", LogLevel.Level0);
}
catch (Exception ex)
{ _log.WriteToLog(ex.Message, LogLevel.Level0); }
}
and once you start this service program in Windows Service, then you have to quickly attach you source code to the service program. In visual studio, it's menu "Debug" -> "Attach to Process...". then you can set break-point in your source code anywhere to check what's going wrong.