Error when calling a webservice from a windows service

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Hi,

I am trying to call a webservice from a windows service application. It
works only if I launch the windows service app from VS.Net 2005 (Worked
around from Main()) or from a winform test application. However, it
generates a kind of security error after I install and start the service in
my Window Server machine. I believe that it is related to authentication.
The following is the sample code:

HttpWebRequest obj = (HttpWebRequest)WebRequest.Create(webServiceUrl);
obj.Method = "POST";
obj.ContentType = "application/x-www-form-urlencoded";
obj.Headers.Add("Authentication", Password);
StreamWriter sw= new StreamWriter(obj.GetRequestStream());
sw.Write(Query);

The exception returned:
"System.Net.WebException: Unable to connect to the remote server --->
System.Net.Sockets.SocketException: No connection could be made because the
target machine actively refused it at
System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress
socketAddress) at System.Net.Sockets.Socket.InternalConnect(EndPoint
remoteEP) at System.Net.ServicePoint.ConnectSocketInternal(Boolean
connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address,
ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, ...."

I did some research online. Many people got similar errors. However, I have
not found a solution yet.

Any solution or suggestion is appreciated.

GD
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Re: Error when calling a webservice from a windows service by Bryan

Bryan
Tue Apr 17 19:26:19 CDT 2007

You will get this error if the web server is not listening for requests.
Try using IE to hit the web service manually when you get this error.

On the web server, check the IIS logs to see if any traffic was recorded
and if so, check the Win32 and Http status codes.

--
Bryan Phillips
MCSD, MCDBA, MCSE
Blog: http://bphillips76.spaces.live.com
Web Site: http://www.composablesystems.net



"GD" <jb48888@yahoo.com> wrote in message
news:OmYVKlTgHHA.4032@TK2MSFTNGP02.phx.gbl:

> Hi,
>
> I am trying to call a webservice from a windows service application. It
> works only if I launch the windows service app from VS.Net 2005 (Worked
> around from Main()) or from a winform test application. However, it
> generates a kind of security error after I install and start the service in
> my Window Server machine. I believe that it is related to authentication.
> The following is the sample code:
>
> HttpWebRequest obj = (HttpWebRequest)WebRequest.Create(webServiceUrl);
> obj.Method = "POST";
> obj.ContentType = "application/x-www-form-urlencoded";
> obj.Headers.Add("Authentication", Password);
> StreamWriter sw= new StreamWriter(obj.GetRequestStream());
> sw.Write(Query);
>
> The exception returned:
> "System.Net.WebException: Unable to connect to the remote server --->
> System.Net.Sockets.SocketException: No connection could be made because the
> target machine actively refused it at
> System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress
> socketAddress) at System.Net.Sockets.Socket.InternalConnect(EndPoint
> remoteEP) at System.Net.ServicePoint.ConnectSocketInternal(Boolean
> connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address,
> ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, ...."
>
> I did some research online. Many people got similar errors. However, I have
> not found a solution yet.
>
> Any solution or suggestion is appreciated.
>
> GD

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Re: Error when calling a webservice from a windows service by GD

GD
Tue Apr 17 22:13:23 CDT 2007

Thanks for reply.

The windows service works at my home. I believe that the port or socket that
the service uses is blocked at my company network.

How to configure the port or socket in a Windows Server or network?

Thanks.

GD

"Bryan Phillips" <bphillips@nospam.spamcop.net.spammenot> wrote in message
news:O9ZANBVgHHA.4552@TK2MSFTNGP04.phx.gbl...
> You will get this error if the web server is not listening for requests.
> Try using IE to hit the web service manually when you get this error.
>
> On the web server, check the IIS logs to see if any traffic was recorded
> and if so, check the Win32 and Http status codes.
>
> --
> Bryan Phillips
> MCSD, MCDBA, MCSE
> Blog: http://bphillips76.spaces.live.com
> Web Site: http://www.composablesystems.net
>
>
>
> "GD" <jb48888@yahoo.com> wrote in message
> news:OmYVKlTgHHA.4032@TK2MSFTNGP02.phx.gbl:
>
>> Hi,
>>
>> I am trying to call a webservice from a windows service application. It
>> works only if I launch the windows service app from VS.Net 2005 (Worked
>> around from Main()) or from a winform test application. However, it
>> generates a kind of security error after I install and start the service
>> in
>> my Window Server machine. I believe that it is related to authentication.
>> The following is the sample code:
>>
>> HttpWebRequest obj = (HttpWebRequest)WebRequest.Create(webServiceUrl);
>> obj.Method = "POST";
>> obj.ContentType = "application/x-www-form-urlencoded";
>> obj.Headers.Add("Authentication", Password);
>> StreamWriter sw= new StreamWriter(obj.GetRequestStream());
>> sw.Write(Query);
>>
>> The exception returned:
>> "System.Net.WebException: Unable to connect to the remote server --->
>> System.Net.Sockets.SocketException: No connection could be made because
>> the
>> target machine actively refused it at
>> System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot,
>> SocketAddress
>> socketAddress) at System.Net.Sockets.Socket.InternalConnect(EndPoint
>> remoteEP) at System.Net.ServicePoint.ConnectSocketInternal(Boolean
>> connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address,
>> ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, ...."
>>
>> I did some research online. Many people got similar errors. However, I
>> have
>> not found a solution yet.
>>
>> Any solution or suggestion is appreciated.
>>
>> GD
>


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