The Windows Application Compatibility Update is a software update that improves the compatibility experience in the following Microsoft Windows operating systems:
Windows 7
Windows Server 2008 R2
Microsoft regularly releases application compatibility updates for these Windows operating systems.
The kinds of problems that are resolved by application compatibility updates
When you try to install and run certain legacy games or applications in Windows Vista Service Pack 2 (SP2), in Windows Server 2008 Service Pack 2 (SP2), in Windows 7, and in Windows Server 2008 R2, you may experience one or more of the following symptoms:
The game, the application, or the firmware is installed incorrectly.
The game, the application, or the firmware causes system instability.
The primary functions of the game, of the application, or of the firmware do not work correctly.
Applications that experience a change in behavior after you install this update
The following table lists the applications that were added to the cumulative update package. This table also describes the behavior of these applications after you install the update.
Application compatibility updates trigger several changes in Windows Vista SP2, in Windows Server 2008 SP2, in Windows 7, and in Windows Server 2008 R2. The following are the three most common:
Hard block
The update puts a hard block on the application. A hard block prevents an application that is incompatible with Windows 7 and with Windows Server 2008 from running on the system.
Note Microsoft enables Windows to put a hard block on a non-Microsoft application only if the manufacturer of the application gives its consent.
Soft block
The update puts a soft block on the application. A soft block notifies you when an application that is incompatible with Windows 7 starts to run.
Update
The update improves the application’s functionality in Windows Vista SP2, in Windows Server 2008 SP2, in Windows 7, and in Windows Server 2008 R2.
Applications that are included in the August 2010 update
For Windows 7 or for Windows Server 2008 R2
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Application
Behavior after you install the update
Sensible Vision FastAccess
Updates the soft block to make sure that the soft block only applies to FastAccess 2.4.7 and earlier versions.
Update information
How to obtain this update
This update is available from the Microsoft Update website:
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
How to obtain Microsoft support files from online services
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.
Prerequisites
To apply this update, you must be running Windows 7 or Windows Server 2008 R2.
Registry information
To use the update in this package, you do not have to make any changes to the registry.
Restart requirement
You may have to restart the computer after you apply this update.
Application Compatibility Update for Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2: June 2010
File information
The English (United States) version of this hotfix 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 7 and Windows Server 2008 R2 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:
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Version
Product
Milestone
Service branch
6.1.760
0.16xxx
Windows 7 and Windows Server 2008 R2
RTM
GDR
6.1.760
0.20xxx
Windows 7 and Windows Server 2008 R2
RTM
LDR
GDR service branches contain only those fixes that are widely released to address widespread, extremely important 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 Server 2008 R2 and for Windows 7" 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 all supported x86-based versions of Windows 7
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File name
File version
File size
Date
Time
Platform
Pcamain.sdb
Not Applicable
44,452
06-Jul-2010
23:22
Not Applicable
Pcamain.sdb
Not Applicable
44,452
06-Jul-2010
23:17
Not Applicable
Acres.dll
6.1.7600.16385
2,560
14-Jul-2009
01:03
x86
Sysmain.sdb
Not Applicable
4,052,446
06-Jul-2010
23:28
Not Applicable
Acres.dll
6.1.7600.16385
2,560
14-Jul-2009
01:03
x86
Sysmain.sdb
Not Applicable
4,052,446
06-Jul-2010
23:24
Not Applicable
Msimain.sdb
Not Applicable
1,759,578
06-Jul-2010
23:28
Not Applicable
Msimain.sdb
Not Applicable
1,759,578
06-Jul-2010
23:24
Not Applicable
Aclayers.dll
6.1.7600.16385
559,616
14-Jul-2009
01:14
x86
Acxtrnal.dll
6.1.7600.16385
211,968
14-Jul-2009
01:14
x86
Drvmain.sdb
Not Applicable
151,372
06-Jul-2010
23:28
Not Applicable
Aclayers.dll
6.1.7600.16385
559,616
14-Jul-2009
01:14
x86
Acxtrnal.dll
6.1.7600.16385
211,968
14-Jul-2009
01:14
x86
Drvmain.sdb
Not Applicable
151,372
06-Jul-2010
23:24
Not Applicable
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
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File name
File version
File size
Date
Time
Platform
Sysmain.sdb
Not Applicable
121,268
06-Jul-2010
23:23
Not Applicable
Sysmain.sdb
Not Applicable
121,268
06-Jul-2010
23:22
Not Applicable
Aclayers.dll
6.1.7600.16629
347,648
07-Jul-2010
05:52
x64
Acxtrnal.dll
6.1.7600.16629
135,168
07-Jul-2010
05:52
x64
Aclayers.dll
6.1.7600.20749
347,648
07-Jul-2010
06:07
x64
Acxtrnal.dll
6.1.7600.20749
135,168
07-Jul-2010
06:07
x64
Acres.dll
6.1.7600.16385
2,560
14-Jul-2009
01:03
x86
Sysmain.sdb
Not Applicable
4,052,446
06-Jul-2010
23:28
Not Applicable
Acres.dll
6.1.7600.16385
2,560
14-Jul-2009
01:03
x86
Sysmain.sdb
Not Applicable
4,052,446
06-Jul-2010
23:24
Not Applicable
Msimain.sdb
Not Applicable
1,759,578
06-Jul-2010
23:28
Not Applicable
Msimain.sdb
Not Applicable
1,759,578
06-Jul-2010
23:24
Not Applicable
Aclayers.dll
6.1.7600.16385
559,616
14-Jul-2009
01:14
x86
Acxtrnal.dll
6.1.7600.16385
211,968
14-Jul-2009
01:14
x86
Drvmain.sdb
Not Applicable
151,372
06-Jul-2010
23:28
Not Applicable
Aclayers.dll
6.1.7600.16385
559,616
14-Jul-2009
01:14
x86
Acxtrnal.dll
6.1.7600.16385
211,968
14-Jul-2009
01:14
x86
Drvmain.sdb
Not Applicable
151,372
06-Jul-2010
23:24
Not Applicable
For all supported IA-64-based versions of Windows Server 2008 R2
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File name
File version
File size
Date
Time
Platform
Sysmain.sdb
Not Applicable
118,246
06-Jul-2010
23:18
Not Applicable
Sysmain.sdb
Not Applicable
118,246
06-Jul-2010
23:18
Not Applicable
Aclayers.dll
6.1.7600.16629
548,864
07-Jul-2010
04:48
IA-64
Acxtrnal.dll
6.1.7600.16629
310,784
07-Jul-2010
04:48
IA-64
Aclayers.dll
6.1.7600.20749
548,864
07-Jul-2010
04:45
IA-64
Acxtrnal.dll
6.1.7600.20749
310,784
07-Jul-2010
04:45
IA-64
Acres.dll
6.1.7600.16385
2,560
14-Jul-2009
01:03
x86
Sysmain.sdb
Not Applicable
4,052,446
06-Jul-2010
23:28
Not Applicable
Acres.dll
6.1.7600.16385
2,560
14-Jul-2009
01:03
x86
Sysmain.sdb
Not Applicable
4,052,446
06-Jul-2010
23:24
Not Applicable
Msimain.sdb
Not Applicable
1,759,578
06-Jul-2010
23:28
Not Applicable
Msimain.sdb
Not Applicable
1,759,578
06-Jul-2010
23:24
Not Applicable
Aclayers.dll
6.1.7600.16385
559,616
14-Jul-2009
01:14
x86
Acxtrnal.dll
6.1.7600.16385
211,968
14-Jul-2009
01:14
x86
Drvmain.sdb
Not Applicable
151,372
06-Jul-2010
23:28
Not Applicable
Aclayers.dll
6.1.7600.16385
559,616
14-Jul-2009
01:14
x86
Acxtrnal.dll
6.1.7600.16385
211,968
14-Jul-2009
01:14
x86
Drvmain.sdb
Not Applicable
151,372
06-Jul-2010
23:24
Not Applicable
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: