FIX: All the applications that use the C run-time library may not start after you install Visual Studio 2005 and then you uninstall Visual Studio 2005 without restarting the computer

Consider the following scenario. You install Microsoft Visual Studio 2005, and then you uninstall Visual Studio 2005. Without restarting the computer, you install Visual Studio 2005 again, and then you uninstall Visual Studio 2005 again. In this scenario, all the applications that use the C run-time library may not start.

This problem occurs because the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\ PendingFileRenameOperations registry subkey is configured to delete the Msvcr80.dll library. This registry subkey is configured when you uninstall Visual Studio 2005. The Msvcr80.dll library is located in the %windir%\WinSXS folder. The Msvcr80.dll library is deleted when you restart the computer.

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 Visual Studio 2005 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.

Prerequisites

To apply this hotfix, you must have Visual Studio 2005 installed on the computer.

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.

32-bit versions

Itanium-architecture version

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: