Windows Services

[Chakkaradeep]

Hi all,

I created a Minimal Windows Service Program in Visual Studio.NET VC# using
the Wizard...i just added the MessageBox Display in OnStart() function and my
service is installed properly...but when i started the Service it display
that "Local Service started and stopped , Serivces should have Log Support
and Alerts Isssued"..

what is this error??...am running Windows XP Home Edition,

i have given the AccountType as "LocalService", i tried with everything
excpet with User...i no need to run as User...

i would be happy if anyone could help me sort out this ...

with regards,
C.C.Chakkaradee p

[Willy Denoyette [MVP]]

The errors is that you should not show a message box from a service.
Services are meant to run in the background without any user interaction
requirements.

Willy.

"Chakkarade ep" <Ch**********@d iscussions.micr osoft.com> wrote in message
news:12******** *************** ***********@mic rosoft.com...

Hi all,

I created a Minimal Windows Service Program in Visual Studio.NET VC# using
the Wizard...i just added the MessageBox Display in OnStart() function and
my
service is installed properly...but when i started the Service it display
that "Local Service started and stopped , Serivces should have Log Support
and Alerts Isssued"..

what is this error??...am running Windows XP Home Edition,

i have given the AccountType as "LocalService", i tried with everything
excpet with User...i no need to run as User...

i would be happy if anyone could help me sort out this ...

with regards,
C.C.Chakkaradee p

[Chakkaradeep]

Hi Willy,

so then how to check it out whether it is running or not..and is Socket
Communication possible in Services.....th at is,..my service should act as a
Multithreaded Server monitoring a Port Number and if any informations come to
the port it should accept the sockets and exeute something so that the
Service has completed it's job...

am a newbie to to this Service...

with regards,
C.C.Chakkaradee p

"Willy Denoyette [MVP]" wrote:

The errors is that you should not show a message box from a service.
Services are meant to run in the background without any user interaction
requirements.

Willy.

"Chakkarade ep" <Ch**********@d iscussions.micr osoft.com> wrote in message
news:12******** *************** ***********@mic rosoft.com...

Hi all,

I created a Minimal Windows Service Program in Visual Studio.NET VC# using
the Wizard...i just added the MessageBox Display in OnStart() function and
my
service is installed properly...but when i started the Service it display
that "Local Service started and stopped , Serivces should have Log Support
and Alerts Isssued"..

what is this error??...am running Windows XP Home Edition,

i have given the AccountType as "LocalService", i tried with everything
excpet with User...i no need to run as User...

i would be happy if anyone could help me sort out this ...

with regards,
C.C.Chakkaradee p

[Willy Denoyette [MVP]]

Socket communications are no issue. But you should be aware that services
are (should be) running in a restricted security context:
- They should not assume the presence of an interactive desktop nor an
interactive user (logon session).
- For security reasons, they should run with the least privileges possible
(run as NetworkService or LocalService).
Running as LocalSystem gives the service high privileges on the local system
but no access to remote system resources, it's the only account that enables
a service to interact with the desktop (to enable this - run services applet
and check/enable this property).
While it's possible to enable this option for quick and dirty debugging, I
would suggest you use one of the other facilities offered by .NET for
debugging and tracing (write to log file or eventlog, output to debugger
window etc.).

Willy.

"Chakkarade ep" <Ch**********@d iscussions.micr osoft.com> wrote in message
news:E1******** *************** ***********@mic rosoft.com...

Hi Willy,

so then how to check it out whether it is running or not..and is Socket
Communication possible in Services.....th at is,..my service should act as
a
Multithreaded Server monitoring a Port Number and if any informations come
to
the port it should accept the sockets and exeute something so that the
Service has completed it's job...

am a newbie to to this Service...

with regards,
C.C.Chakkaradee p

"Willy Denoyette [MVP]" wrote:

The errors is that you should not show a message box from a service.
Services are meant to run in the background without any user interaction
requirements.

Willy.

"Chakkarade ep" <Ch**********@d iscussions.micr osoft.com> wrote in message
news:12******** *************** ***********@mic rosoft.com...

> Hi all,
>
> I created a Minimal Windows Service Program in Visual Studio.NET VC#
> using
> the Wizard...i just added the MessageBox Display in OnStart() function
> and
> my
> service is installed properly...but when i started the Service it
> display
> that "Local Service started and stopped , Serivces should have Log
> Support
> and Alerts Isssued"..
>
> what is this error??...am running Windows XP Home Edition,
>
> i have given the AccountType as "LocalService", i tried with everything
> excpet with User...i no need to run as User...
>
> i would be happy if anyone could help me sort out this ...
>
> with regards,
> C.C.Chakkaradee p

[Chakkaradeep]

Hi Willy,

so u mean to say that i can accept a socket and receive messages but i cant
send messages back to the client??

with regards,
C.C.Chakkaradee p

"Willy Denoyette [MVP]" wrote:

Socket communications are no issue. But you should be aware that services
are (should be) running in a restricted security context:
- They should not assume the presence of an interactive desktop nor an
interactive user (logon session).
- For security reasons, they should run with the least privileges possible
(run as NetworkService or LocalService).
Running as LocalSystem gives the service high privileges on the local system
but no access to remote system resources, it's the only account that enables
a service to interact with the desktop (to enable this - run services applet
and check/enable this property).
While it's possible to enable this option for quick and dirty debugging, I
would suggest you use one of the other facilities offered by .NET for
debugging and tracing (write to log file or eventlog, output to debugger
window etc.).

Willy.

"Chakkarade ep" <Ch**********@d iscussions.micr osoft.com> wrote in message
news:E1******** *************** ***********@mic rosoft.com...

Hi Willy,

so then how to check it out whether it is running or not..and is Socket
Communication possible in Services.....th at is,..my service should act as
a
Multithreaded Server monitoring a Port Number and if any informations come
to
the port it should accept the sockets and exeute something so that the
Service has completed it's job...

am a newbie to to this Service...

with regards,
C.C.Chakkaradee p

"Willy Denoyette [MVP]" wrote:

The errors is that you should not show a message box from a service.
Services are meant to run in the background without any user interaction
requirements.

Willy.

"Chakkarade ep" <Ch**********@d iscussions.micr osoft.com> wrote in message
news:12******** *************** ***********@mic rosoft.com...
> Hi all,
>
> I created a Minimal Windows Service Program in Visual Studio.NET VC#
> using
> the Wizard...i just added the MessageBox Display in OnStart() function
> and
> my
> service is installed properly...but when i started the Service it
> display
> that "Local Service started and stopped , Serivces should have Log
> Support
> and Alerts Isssued"..
>
> what is this error??...am running Windows XP Home Edition,
>
> i have given the AccountType as "LocalService", i tried with everything
> excpet with User...i no need to run as User...
>
> i would be happy if anyone could help me sort out this ...
>
> with regards,
> C.C.Chakkaradee p

[Willy Denoyette [MVP]]

"Chakkarade ep" <Ch**********@d iscussions.micr osoft.com> wrote in message
news:1E******** *************** ***********@mic rosoft.com...

Hi Willy,

so u mean to say that i can accept a socket and receive messages but i
cant
send messages back to the client??

No, I said Sockets are no problem.
Willy.

[Chakkaradeep]

hi,

so then Sockets are not issue...hmm...n ice to hear...so i can just create
Sockets using TcpListener and accept TcpClients,rite ?.....and how to check
for OnStart() function...by storing some informations in files???

with regards,
C.C.Chakkaradee p

"Willy Denoyette [MVP]" wrote:

"Chakkarade ep" <Ch**********@d iscussions.micr osoft.com> wrote in message
news:1E******** *************** ***********@mic rosoft.com...

Hi Willy,

so u mean to say that i can accept a socket and receive messages but i
cant
send messages back to the client??

No, I said Sockets are no problem.
Willy.

[Willy Denoyette [MVP]]

"Chakkarade ep" <Ch**********@d iscussions.micr osoft.com> wrote in message
news:DF******** *************** ***********@mic rosoft.com...

hi,

so then Sockets are not issue...hmm...n ice to hear...so i can just create
Sockets using TcpListener and accept TcpClients,rite ?.....and how to check
for OnStart() function...by storing some informations in files???

Just write a message to the eventlog.

Willy.

[Chakkaradeep]

hi willy ,

here is my code for Service...

/*********Servic e OnStart( ) function starts here*********** ***********/
protected override void OnStart(string[] args)
{
// TODO: Add code here to start your service.
System.Net.IPAd dress localAdd=System .Net.IPAddress. Parse("127.0.0. 1");
const int portNumber = 3000;
TcpListener tcpListener = new TcpListener(loc alAdd,portNumbe r);
tcpListener.Sta rt();
//try
{
//Accept the pending client connection and return a TcpClient initialized
for communication.
TcpClient tcpClient = tcpListener.Acc eptTcpClient();
NetworkStream networkStream =
tcpClient.GetSt ream();
string responseString = "You have successfully connected to me";

Byte[] sendBytes = Encoding.ASCII. GetBytes(respon seString);
networkStream.W rite(sendBytes, 0, sendBytes.Lengt h);

tcpClient.Close ();
tcpListener.Sto p();

}
}
/*********Servic e OnStart( ) function ends here*********** ***********/

I tried with evry Account....when i start the service,it is taking much time
and then finally tells that the servie cannot be installed becoz it is out of
time.....what is my error???

The client progrm is here...

/*********Client Program Starts here*********** ***********/
static void Main(string[] args)
{
TcpClient tcpClient = new TcpClient();
try {
tcpClient.Conne ct("localhost" , 3000);
NetworkStream networkStream = tcpClient.GetSt ream();

if(networkStrea m.CanWrite && networkStream.C anRead){
// Does a simple write.
Byte[] sendBytes = Encoding.ASCII. GetBytes("Is anybody there");
networkStream.W rite(sendBytes, 0, sendBytes.Lengt h);

// Reads the NetworkStream into a byte buffer.
byte[] bytes = new byte[tcpClient.Recei veBufferSize];
networkStream.R ead(bytes, 0, (int) tcpClient.Recei veBufferSize);

// Returns the data received from the host to the console.
string returndata = Encoding.ASCII. GetString(bytes );
Console.WriteLi ne("This is what the host returned to you: " +
returndata);

}
else if (!networkStream .CanRead)
{
Console.WriteLi ne("You can not write data to this stream");
tcpClient.Close ();
}
else if (!networkStream .CanWrite)
{
Console.WriteLi ne("You can not read data from this stream");
tcpClient.Close ();
}
}
catch (Exception e )
{
Console.WriteLi ne(e.ToString() );
}
}
/*********Client Program ends here*********** ***********/

The Server and Client Samples were taken from MSDN only.....

what would be the problem...

with regards,
C.C.Chakkaradee p

[Massimo]

"Chakkarade ep" <Ch**********@d iscussions.micr osoft.com> ha scritto nel
messaggio news:F5******** *************** ***********@mic rosoft.com...

hi willy ,

here is my code for Service...

/*********Servic e OnStart( ) function starts here*********** ***********/
protected override void OnStart(string[] args)
{
// TODO: Add code here to start your service.
System.Net.IPAd dress localAdd=System .Net.IPAddress. Parse("127.0.0. 1");
const int portNumber = 3000;
TcpListener tcpListener = new TcpListener(loc alAdd,portNumbe r);
tcpListener.Sta rt();
//try
{
//Accept the pending client connection and return a TcpClient initialized
for communication.
TcpClient tcpClient = tcpListener.Acc eptTcpClient();
NetworkStream networkStream =
tcpClient.GetSt ream();
string responseString = "You have successfully connected to me";

Byte[] sendBytes =
Encoding.ASCII. GetBytes(respon seString);
networkStream.W rite(sendBytes, 0, sendBytes.Lengt h);

tcpClient.Close ();
tcpListener.Sto p();

}
}
/*********Servic e OnStart( ) function ends here*********** ***********/

I tried with evry Account....when i start the service,it is taking much
time
and then finally tells that the servie cannot be installed becoz it is out
of
time.....what is my error???

This code is correct, but it can't work; the SCM calls the OnStart()
function and expects it to return, or it will report the timout you're
experiencing; so you can do only initializations there, not your main
processing (i.e. waiting for connections). You'll have to run the service on
a different thread than the one who calls OnStart. You have two choiches
here: spawn the worker thread manually and have it run the same code you
tried to run inside OnStart(), or use async sockets..

Massimo