//(where ServiceReference2 is the root namespace for the web service reference)
		private void SendFile(string sUsr, string sPwd)
		{
			System.IO.FileStream oFS = new System.IO.FileStream("C:\testfile.pdf", FileMode.Open, FileAccess.Read);
			byte[] bFile = new byte[oFS.Length -1];
			try
			{
				long len = oFS.Length;
				oFS.Read(bFile, 0,(int)len);
			}
			finally
			{
				oFS.Close();
			}


			ServiceReference2.DMWSSoapClient oService = new ServiceReference2.DMWSSoapClient();
			ServiceReference2.ServiceAuthHeader oSAH = new ServiceReference2.ServiceAuthHeader();
			oSAH.Username = sUsr;
			oSAH.Password = sPwd;

			ServiceReference2.Mailing oMailing = new ServiceReference2.Mailing();
			ServiceReference2.Address oAddress = new ServiceReference2.Address();

			oMailing.MailingDescription = "Description";

			oMailing.IsBlackAndWhite = false;
			oMailing.IsDuplex = false;

			//AddressNameFormat - defines how the name will be formatted on the address of the letter 
			//(aimed at mailings where the name fields may be used as part of a full mail-merge)
			//  	"T"=[Title] [Firstname] [Surname]
			//	"S"=[Title] [Surname]
			//  	"F"=[Firstname] [Surname]
			//  	"D"=[Fullname]
			oMailing.AddressNameFormat = "T";
			//  
			{
				oAddress.Title = "NameTitle";
				oAddress.FirstName = "FirstName";
				oAddress.Surname = "Surname";
				oAddress.JobTitle = "JobTitle";
				oAddress.FullName = "FullName";
				oAddress.Address1 = "Address1";
				oAddress.Address2 = "Address2";
				oAddress.Address3 = "Address3";
				oAddress.Address4 = "Address4";
				oAddress.Address5 = "Address5";
			}

			//add address to mailing
			ServiceReference2.Address[] oAddresses = new ServiceReference2.Address[1];
			oAddresses.SetValue(oAddress, oAddresses.Length - 1);
			oMailing.Addresses = oAddresses;

			ServiceReference2.Template oTemplate = new ServiceReference2.Template();
			{
				oTemplate.FileData = bFile;
				oTemplate.FileName = "tsftfile.pdf";
				oTemplate.TemplateName = "TemplateName";
				oTemplate.AddressedDocument = true;
			}

			//add template to mailing
			ServiceReference2.Template[] oTemplates = new ServiceReference2.Template[1];
			oTemplates.SetValue(oTemplate, oTemplates.Length  - 1);
			oMailing.Templates = oTemplates;

			//Save mailing
			ServiceReference2.MailingResult oMailingResult = oService.SaveMailing(oSAH, oMailing);
			if (!oMailingResult.Success) throw new Exception(string.Format("Mailing error: {0}", oMailingResult.FailureMessage));

			//Create a proof of the mailing
			ServiceReference2.Proof oProof = oService.GetProof(oSAH, oMailingResult.MailingGUID, true);
			int iSecondCount = 0;
			//Loop for 3 mins waiting for a proof
			while ((iSecondCount < 180) && oProof.Success && !oProof.ProofReady)
			{
				//Sleep for 5 seconds
				System.Threading.Thread.Sleep(1000);
				oProof = oService.GetProof(oSAH, oMailingResult.MailingGUID, true);
				iSecondCount += 1;
			}
			if (!oProof.Success | !oProof.ProofReady) throw new Exception("Proof not ready within 3 mins");

			//Place the order
			ServiceReference2.PlaceOrderResult oOrderResult = oService.PlaceOrder(oSAH, oMailingResult.MailingGUID, "");

			if (!oOrderResult.Success) throw new Exception(string.Format("PlaceOrder error: {0}", oOrderResult.FailureMessage));
		}