Microsoft KB Archive/904568

= FIX: The incorrect version of a function may be called when a Visual Basic .NET component exposes multiple versions of the function and a COM client uses late binding in Visual Studio .NET 2003 =

Article ID: 904568

Article Last Modified on 12/3/2007

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APPLIES TO


 * Microsoft Visual Studio .NET 2003 Professional Edition
 * Microsoft Visual Studio .NET 2003 Enterprise Architect
 * Microsoft Visual Studio .NET 2003 Enterprise Developer
 * Microsoft Visual Studio .NET 2003 Academic Edition
 * Microsoft .NET Framework 1.1 Service Pack 1

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SYMPTOMS
Consider the following scenario. In Microsoft Visual Studio .NET 2003, you have a Microsoft Visual Basic .NET component that exposes multiple versions of a function. These multiple function versions only differ in the parameters. Visual Basic .NET exposes these parameters as a Microsoft Component Object Model (COM) interface by using interoperability. In this scenario, the incorrect version of the function may be called when the COM client uses late binding.

Note This behavior does not occur when the COM client uses early binding to the same interface.



CAUSE
This problem occurs when incorrect metadata is supplied to the GetIDsOfNames method of the IDispatch interface in the common language runtime (CLR).



RESOLUTION
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 .NET Framework 1.1 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:

http://support.microsoft.com/contactus/?ws=support

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.

Prerequisites
You must have Visual Studio .NET 2003 installed to apply this hotfix.

Restart requirement
You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfix.

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.  Date         Time      Version      Size     File name -- 13-Aug-2005  00:48:22  7.10.6353.4  299,008  Microsoft.VisualBasic.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
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

Keywords: kbqfe kbhotfixserver kbtshoot kbfix kbbug kbpubtypekc KB904568

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