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FIX: You may receive a "System.ArgumentException Only one WebServiceBinding attribute may be specified on type" error message when you run a Visual Basic .NET 2003 application that calls a Web service

This article has been archived. It is offered "as is" and will no longer be updated.
When you run an application that calls a Web service, you may receive an error message that is similar to the following:
System.ArgumentException: Only one WebServiceBinding attribute may be specified on type 'XXX.YYY'.Parameter name: typeat System.Web.Services.WebServiceBindingReflector.GetAttribute(Type type)at System.Web.Services.Protocols.SoapClientType..ctor(Type type)at System.Web.Services.Protocols.SoapHttpClientProtocol..ctor()
Note This problem occurs when the application was written by using Microsoft Visual Basic .NET 2003 and the application uses the Microsoft .NET Framework 1.1.
This problem is caused by a bug in the Visual Basic .NET 2003 compiler.

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft Visual Studio .NET 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.


To apply this hotfix, you must have Visual Studio .NET 2003 installed on the computer.

Note You must select the version of the hotfix installer that is the same language as the language of the Visual Studio .NET 2003 product that will be updated.

Restart requirement

You do not have to restart the server after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
File nameFile versionFile sizeDateTimePlatform
Bcaut.dll 7.10.5016.0 598,016 24-Jul-2005 23:21:21 x86
Msvb7.dll 7.10.5016.0 1,441,792 25-Jul-2005 05:46:56 x86
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Article ID: 904380 - Last Review: 01/17/2015 11:23:44 - Revision: 2.2

Microsoft Visual Basic .NET 2003 Standard Edition

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