Summary

This compatibility update improves the compatibility experience in Windows RT 8.1 Preview and in Windows 8.1 Preview. Microsoft regularly releases Windows compatibility updates to improve the overall user experience. This compatibility update is dated June 2013.

For more information about the improvements, refer to the "Applications and devices that are included in this update" section.

More Information

Update information

How to obtain this update

Method 1: Windows Update

This update is available from Windows Update.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

The kinds of problems that are resolved by application compatibility updates

When you try to install and run certain games or applications in Windows RT 8.1 Preview or Windows 8.1 Preview, you may experience one or more of the following symptoms:

  • The game, the application, or the driver is installed incorrectly.

  • The game, the application, or the driver causes system instability.

  • The primary functions of the game, the application, or the firmware do not work correctly.

The kinds of problems that are resolved by application compatibility updates

The following table lists the applications and devices that were included in this cumulative update package. This table also describes the behavior of these applications and devices after you install the update.

Compatibility updates trigger several changes in Windows RT 8.1 Preview and Windows 8.1 Preview. The following are the most common.

Hard block

The update puts a hard block on the application. The hard block prevents an application that is incompatible with Windows RT 8.1 Preview or Windows 8.1 Preview from running on the system.

Note Microsoft enables Windows to put a hard block on a non-Microsoft application only if the manufacturer is notified.

Soft block

This update puts a soft block on the application. The soft block notifies you when the primary functionality of the application is broken or when the application experience is unstable in Windows RT 8.1 Preview or Windows 8.1 Preview.

Driver block

This action may block an existing driver on your computer. When the driver is migrated during the upgrade, an Inbox driver is installed.

Applications and devices that are included in this update

Application Name

Version

Behavior after you install the update

AutoCAD

2013

Improves user experience by fixing issues.

Dr.Web Security Space Pro

7.0, 8.0

Improves user experience by not migrating the application to Windows 8.1 Preview, blocking the application from being installed on Windows 8.1 Preview, and provides a URL for more information about the product.

Nero InCD

6.6.5.100, 15.*

Improves user experience by warning the end-user, and provides a URL for more information about the product.

Telenor

Improves user experience by warning the end-user, and provides a URL for more information about the product.

Naver Vaccine

1.1.0.150

Blocks application from being installed.

eScan Internet Security Suite for Home Users

10

Blocks application from being installed.

TuneUp Utilities 2013

13.0.2020.14

Improves user experience by warning the end-user, and provides a URL for more information about the product.

Parallels Desktop

4.*

Improves user experience by not migrating the application to Windows 8.1 Preview, blocking the application from being installed on Windows 8.1 Preview, and provides a URL for more information about the product.

McAfee Anti-Theft

Improves user experience by preventing crashes.

AVG PC TuneUp

12.0.4000.108

Improves user experience by warning the end-user, and provides a URL for more information about the product.

Norton security products

Not available

Enables the application’s functionality.

Quake 4

Improves user experience by fixing high resolution issue.

Serious Sam

Improves user experience by fixing high resolution issue.

AVG Internet Security 2013

Not available

Blocks application from being installed.

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Prerequisites

To apply this update, you must be running Windows RT 8.1 Preview or Windows 8.1 Preview.

Registry information

To apply this update, you do not have to make any changes to the registry.

Restart requirement

You do not have to restart the computer after you apply this update.

Hotfix replacement information

This update does not replace a previously released update.

The global version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows RT 8.1 Preview and Windows 8.1 Preview file information notes

  • The files that apply to a specific product, milestone (RTM,SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Service branch

    6.3.9431.16xxx

    Windows RT 8.1 Preview and Windows 8.1 Preview

    GDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows RT 8.1 Preview and Windows 8.1 Preview" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For Windows RT 8.1 Preview

File name

File version

File size

Date

Time

Platform

Acres.dll

6.3.9431.0

310,272

15-Jun-2013

22:39

Not applicable

Sysmain.sdb

Not applicable

23,944

22-Jun-2013

02:52

Not applicable

Msimain.sdb

Not applicable

286

22-Jun-2013

02:52

Not applicable

Acgenral.dll

6.3.9431.164

9,728

22-Jun-2013

06:46

Not applicable

Acwinrt.dll

6.3.9431.0

8,704

15-Jun-2013

21:37

Not applicable

Drvmain.sdb

Not applicable

52,318

22-Jun-2013

02:52

Not applicable

For all supported x86-based versions of Windows 8.1 Preview

File name

File version

File size

Date

Time

Platform

Acres.dll

6.3.9431.0

310,272

15-Jun-2013

23:32

x86

Sysmain.sdb

Not applicable

4,477,474

22-Jun-2013

02:57

Not applicable

Msimain.sdb

Not applicable

2,640,634

22-Jun-2013

02:57

Not applicable

Acgenral.dll

6.3.9431.164

2,364,416

22-Jun-2013

06:27

x86

Acwinrt.dll

6.3.9431.0

8,704

15-Jun-2013

22:07

x86

Drvmain.sdb

Not applicable

111,940

22-Jun-2013

02:57

Not applicable

For all supported x64-based versions of Windows 8.1 Preview

File name

File version

File size

Date

Time

Platform

Sysmain.sdb

Not applicable

332,430

22-Jun-2013

02:54

Not applicable

Msimain.sdb

Not applicable

2,691,980

22-Jun-2013

02:54

Not applicable

Acgenral.dll

6.3.9431.164

269,312

22-Jun-2013

07:14

x64

Acwinrt.dll

6.3.9431.0

10,240

15-Jun-2013

22:48

x64

Drvmain.sdb

Not applicable

111,658

22-Jun-2013

02:54

Not applicable

Acres.dll

6.3.9431.0

310,272

15-Jun-2013

23:32

x86

Sysmain.sdb

Not applicable

4,477,474

22-Jun-2013

02:57

Not applicable

Acgenral.dll

6.3.9431.164

2,364,416

22-Jun-2013

06:27

x86

Acwinrt.dll

6.3.9431.0

8,704

15-Jun-2013

22:07

x86

Reference

For more information about software update terminology, 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

Additional file information

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