Yes, you should have no problem consuming Version 2.1 of the Web Service from a .NET 1.1 application.  You need to install Microsoft WSE 2.0 SP3, then add the Web Reference.

If you have problems with the code, please let us know and we can send you a sample.

Sure. If you can send me the sample code, that will help me a lot. I have added WSE 2.0 SP3. I can access it. Not sure how to add user credential etc yet.

Thanks

Once you added the Web Reference (XWeb1003V2 in this example):

'create XWeb1003 proxy
Dim objXWeb1003 As New XWeb1003V2.XWeb1003PortWse

'add authentication token
objXWeb1003.RequestSoapContext.Security.Tokens.Add(New Microsoft.Web.Services2.Security.Tokens.UsernameToken(LOGIN_NAME_HERE, PASSWORD_HERE, Microsoft.Web.Services2.Security.Tokens.PasswordOption.SendHashed))

'create Request
Dim objLoadApplicationRequest As New XWeb1003V2.LoadApplicationRequest

objLoadApplicationRequest.Application_ID = APPLICATION_ID_HERE

'handle Response
Dim objLoadApplicationResponse As XWeb1003V2.LoadApplicationResponse = objXWeb1003.LoadApplication(objLoadApplicationRequest)

I got an error in the last step. Could you please help me to take a look at it?

----------------------Code----------------------------------------------

'create XWeb1003 proxy

Dim objXWeb1003 As New XWeb1003V2.XWeb1003PortWse

Dim userName As String

Dim password As String

userName = ConfigurationSettings.AppSettings.Get("LOGIN_NAME")

password = ConfigurationSettings.AppSettings.Get("PASSWORD")

'add authentication token

Dim sToken As New Microsoft.Web.Services2.Security.Tokens.UsernameToken(userName, password, Microsoft.Web.Services2.Security.Tokens.PasswordOption.SendHashed)

objXWeb1003.RequestSoapContext.Security.Tokens.Add(sToken)

'create Request

Dim request As New XWeb1003V2.ConvertFannieMaetoMISMORequest

Dim fnm As String

fnm = "<![CDATA[EH 20020624 03C300405000ZG175 Thirteenth Street NW Washington ]]>"

request.Application = fnm

'create Response object

Dim response As New XWeb1003V2.ConvertFannieMaetoMISMOResponse

'Send request, get response

response = objXWeb1003.ConvertFannieMaetoMISMO(request)

-------------Error----------------------------------

Exception Details: System.FormatException: WSE902: The namespace for the following prefix could not be resolved: .

Source Error:

Line 342: <System.Web.Services.Protocols.SoapDocumentMethodAttribute("urn:ws-xwebservices-com:XWeb1003:1003:v2:convertFannieMaetoMISMOIn", Use:=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle:=System.Web.Services.Protocols.SoapParameterStyle.Bare)> _ Line 343: Public Function ConvertFannieMaetoMISMO(<System.Xml.Serialization.XmlElementAttribute([Namespace]:="urn:ws-xwebservices-com:XWeb1003:1003:v2:Messages")> ByVal ConvertFannieMaetoMISMORequest As ConvertFannieMaetoMISMORequest) As <System.Xml.Serialization.XmlElementAttribute("ConvertFannieMaetoMISMOResponse", [Namespace]:="urn:ws-xwebservices-com:XWeb1003:1003:v2:Messages")> ConvertFannieMaetoMISMOResponse Line 344: Dim results() As Object = Me.Invoke("ConvertFannieMaetoMISMO", New Object() {ConvertFannieMaetoMISMORequest}) Line 345: Return CType(results(0),ConvertFannieMaetoMISMOResponse) Line 346: End Function

Source File: c:\inetpub\wwwroot\testXWeb1003VB11\Web References\XWeb1003V2\Reference.vb    Line: 344
-----------------------------------------------------------------

Thanks!

Sorry I have not got a chance to try it again until today. It is working now simply by using a valid .fnm file. Seems the error messages I got for sending over an incomplete .fnm file string are different when the client code is writting in .net 1.1 and .net 2.0.

Thank you very much again for your helps!