Consider the following scenario:

•	A 64-bit application that is created by using the Microsoft .NET Framework 2.0 calls some COM APIs.
•	The COM APIs have multiple instances of the same method.
•	The method uses the lcid attribute.
•	You use one of the following to call the COM APIs: • The managed COM interop • Platform Invoke (P/Invoke) code

In this scenario, incorrect methods are called.

For example, consider the following scenario:

•	You have a 64-bit application that uses a 64-bit version of common language runtime (CLR).
•	The application has two managed P/Invoke functions that have the same signature. The signature points to a single native method.
•	The two P/Invoke functions rely on the LCIDConversionAttribute class for localization support.
•	You run the application.

In this scenario, you may receive an error message that resembles the following:

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Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only 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 Windows Vista or .NET Framework 2.0 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer 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.

Prerequisites

You must have one of the following installed to apply this hotfix:

•	Windows Vista Service Pack 1
•	The .NET Framework 2.0 Service Pack 1

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 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 item in Control Panel.

The .NET Framework 2.0, 32-bit versions, on a computer that is not running Windows Vista

File name	File version	File size	Date	Time	Platform
Cordacwks.dll	2.0.50727.1812	822,280	29-Jan-2008	10:48	x86
Mscorlib.dll	2.0.50727.1812	4,345,856	29-Jan-2008	10:48	x86
Mscorwks.dll	2.0.50727.1812	5,852,672	29-Jan-2008	10:48	x86

The .NET Framework 2.0, Itanium-based versions, on a computer that is not running Windows Vista

File name	File version	File size	Date	Time	Platform
Cordacwks.dll	2.0.50727.1812	822,280	29-Jan-2008	10:48	x86
Cordacwks.dll	2.0.50727.1812	2,769,416	29-Jan-2008	02:26	IA-64
Mscorlib.dll	2.0.50727.1812	4,345,856	29-Jan-2008	10:48	x86
Mscorlib.dll	2.0.50727.1812	3,997,696	29-Jan-2008	02:26	IA-64
Mscorwks.dll	2.0.50727.1812	5,852,672	29-Jan-2008	10:48	x86
Mscorwks.dll	2.0.50727.1812	21,686,272	29-Jan-2008	02:26	IA-64

The .NET Framework 2.0, 64-bit versions, on a computer that is not running Windows Vista

File name	File version	File size	Date	Time	Platform
Cordacwks.dll	2.0.50727.1810	1,652,744	14-Jan-2008	23:36	x64
Cordacwks.dll	2.0.50727.1812	822,280	29-Jan-2008	10:48	x86
Mscorlib.dll	2.0.50727.1810	4,345,856	14-Jan-2008	23:36	x64
Mscorlib.dll	2.0.50727.1812	4,345,856	29-Jan-2008	10:48	x86
Mscorwks.dll	2.0.50727.1810	10,547,200	14-Jan-2008	23:36	x64
Mscorwks.dll	2.0.50727.1812	5,852,672	29-Jan-2008	10:48	x86

The .NET Framework 2.0 on a computer that is running a 32-bit version of Windows Vista with Service Pack 1

File name	File version	File size	Date	Time	Platform
Mscorlib.dll	2.0.50727.1826	4,345,856	06-May-2008	22:18	x86
Mscordacwks.dll	2.0.50727.1826	822,280	06-May-2008	22:18	x86
Mscorwks.dll	2.0.50727.1826	5,852,672	01-May-2008	23:34	x86

The .NET Framework 2.0 on a computer that is running a 64-bit version of Windows Vista with Service Pack 1

File name	File version	File size	Date	Time	Platform
Mscorlib.dll	2.0.50727.1826	4,345,856	05-May-2008	22:13	x64
Mscordacwks.dll	2.0.50727.1826	1,652,744	05-May-2008	22:13	x64
Mscorwks.dll	2.0.50727.1826	10,543,104	01-May-2008	23:36	x64
Mscorlib.dll	2.0.50727.1826	4,345,856	06-May-2008	22:18	x86
Mscordacwks.dll	2.0.50727.1826	822,280	06-May-2008	22:18	x86
Mscorwks.dll	2.0.50727.1826	5,852,672	01-May-2008	23:34	x86

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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For more information about P/Invoke, visit the following Microsoft Developer Network (MSDN) Web site:For more information about the lcid attribute, visit the following MSDN Web site: For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

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