Open Software Solutions

The existing File system APIs in Windows Vista do not provide an easy way to discover and restore deleted files. A new version of the File system API is available that enables third-party developers to discover and restore deleted files from nonencrypted volumes by extending the File Management APIs.

This new API also lets developers pass a password or a recovery key file. Therefore, you can discover and restore deleted files from BitLocker-encrypted volumes. This API does not support the restoration of files from other kinds of encrypted volumes.

This API can only be used to extend the File Management APIs for Windows Vista. Additionally, these functions are only supported when you use the functions in an offline environment, such as Windows Preinstallation Environment (Windows PE) or Windows Recovery Environment (Windows RE).

For more information about the individual functions that this update provides, visit the following Microsoft Developer Network (MSDN) site:

Update information

The following files are available for download from the Microsoft Download Center:

Update for Windows Vista, 32-bit versions (KB943790)

Download the 943790 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=E5C75586-4E42-4C4B-8E81-CE5483F738C1)

Update for Windows Vista, 64-bit versions (KB943790)

Download the 943790 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=2DF42C65-13DB-4C37-B78C-3C6094455EA0)

Release Date: October 27

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

To deploy this update to a Windows PE image, follow these steps:

Note To apply this update on a computer that is running a 64-bit version of Windows Vista, replace x86 with x64 in the commands in steps 1 and 2.

1. Manually extract the files to a temporary location. To do this, at the command prompt, run the following commands:
   Expand -f:* Path KB943790-x86.msu Target Path
   Expand -f:* Path KB943790-x86.cab Target Path
2. Mount the Winpe.wim file, and then run the Imagex.exe tool together with the /mountrw syntax. To do this, at the command prompt, run the following command:
   IMAGEX.EXE /mountrw Path of the Winpe.wim 1 Staging area
3. Copy the updated files to the directory of the mounted Winpe.wim file.
4. Unmount the Winpe.wim file, and then run the Imagex.exe tool together with the /commit syntax. To do this, run the following command:
   IMAGEX.EXE /commit

Prerequisites

To apply this update, you must have Windows PE 2.1 installed on the computer

Restart requirement

You may have to restart the computer after you apply this update.

Hotfix replacement information

This update does not replace any other previously released updates.

File information

The English version of this update 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.

For all supported 32-bit versions of Windows Vista

For all supported 64-bit versions of Windows Vista

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: