Error when you update or install a signed extension in Visual Studio 2010 SP1

Issue 1

If you did familiar action with the following scenario:

• You have a signed extension installed in Visual Studio 2010 SP1.

• You use Extension Manager to try to install an update for the extension. The update renews the signature of the extension.

In this scenario, you receive the following error message:

Issue 2

When you try to install a signed extension that has a valid signature in Visual Studio 2010 SP1 on a computer that is running Windows XP or Windows Server 2003, you receive the following error message in a Download and Install dialog box:

Cause of issue 1

This issue occurs because signatures are compared incorrectly.

Cause of issue 2

This issue occurs because Windows XP and Windows Server 2003 handle the Certificate Revocation Lists (CRL) differently than other operating systems.

When Extension Manager handles the Certificate Revocation Lists (CRL), Extension Manager uses the same method for all operating systems. However, Windows XP and Windows Server 2003 handle the Certificate Revocation Lists (CRL) differently than other operating systems. Therefore, issue 2 occurs.

Resolution for issue 1

To resolve issue 1, uninstall the installed version of the extension, and then install the updated version.

Resolution for issue 2

To resolve issue 2, use one of the following methods:

• If you trust the validity of the extension, click Install in the Download and Install dialog box to install the extension.

• Click here to install the hotfix.
  

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, 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 website:

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