Compatibility update is available for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2: April 2014

Applies to: Windows 8.1 EnterpriseWindows 8.1Windows 8.1 Pro More

Summary

This compatibility update is a software update that improves the compatibility experience in Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2. Microsoft regularly releases Windows compatibility updates to improve the overall user experience.

This compatibility update is dated April 2014.

More Information

Update information

How to obtain this update

This compatibility update is offered when you upgrade to the release version of Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2.

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, Windows 8.1, or Windows Server 2012 R2, 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.

Applications or devices that experience a change in behavior after you install this update

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, Windows 8.1, and Windows Server 2012 R2. The following are the most common.

Hard block

This prevents an application that is incompatible with Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2 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 notifies you when a primary function of the application may not work or may cause application instability.

Driver block

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

Applications and devices that are included in this update

Applications or Devices	Version	Behavior after you install the update
Music Stage	1.6.225.0	Improves the user experience of the application.
Chromazone	1.0.3.0	Improves the user experience of the application.
Math Karting	1.0.0.5	Improves the user experience of the application.
Nero 2014 Platinum - Blu-ray Player Chinese	12.0.20064	Improves the user experience of the application.
Office immersive apps	not available	Improves the user experience of the application.
Baidu Photo Manager (百度相片管家) Sim_Chinese	2.0.2.100	Application handles online-only OneDrive smart files correctly.
Netease Photo Manager (网易相片管家) Sim_Chinese	1.0.1.8	Application handles online-only OneDrive smart files correctly.
Avira apps	10.*	Blocks application installation.
ClickArt 400,000	1	Informs the user to reinstall this application after upgrade.
Final Draft 8	8	Informs the user to reinstall this application after upgrade.
Junos Pulse Secure Access Service	3.0.21365	Informs the user to reinstall this application after upgrade.
Broadcom Virtual Wireless Adapter	not available	Blocks installation of the driver because it affects system stability.
VIPRE Internet Security 2014, VIPRE Antivirus 2014	7.0.6.2	Informs the user to reinstall this application after upgrade.

File information

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.

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, Windows 8.1, and Windows Server 2012 R2" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very 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

File name	File version	File size	Date	Time	Platform
Acres.dll	6.3.9600.16384	310,784	21-Aug-2013	12:16	Not applicable
Sysmain.sdb	Not applicable	39,336	12-Mar-2014	09:29	Not applicable
Msimain.sdb	Not applicable	286	12-Mar-2014	09:29	Not applicable
Acgenral.dll	6.3.9600.16459	9,728	08-Nov-2013	15:31	Not applicable
Acwinrt.dll	6.3.9600.16384	8,704	21-Aug-2013	11:15	Not applicable
Acspecfc.dll	6.3.9600.16427	9,728	12-Oct-2013	06:13	Not applicable
Drvmain.sdb	Not applicable	58,694	12-Mar-2014	09:29	Not applicable

For all supported x86-based versions of Windows 8.1

File name	File version	File size	Date	Time	Platform
Acres.dll	6.3.9600.16384	310,784	21-Aug-2013	13:16	x86
Sysmain.sdb	Not applicable	3,834,192	12-Mar-2014	09:37	Not applicable
Msimain.sdb	Not applicable	2,726,820	12-Mar-2014	09:37	Not applicable
Acgenral.dll	6.3.9600.17050	2,441,216	12-Mar-2014	15:01	x86
Acwinrt.dll	6.3.9600.16384	8,704	21-Aug-2013	11:47	x86
Acspecfc.dll	6.3.9600.17050	442,880	12-Mar-2014	15:08	x86
Drvmain.sdb	Not applicable	118,272	12-Mar-2014	09:37	Not applicable

For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name	File version	File size	Date	Time	Platform
Sysmain.sdb	Not applicable	433,548	12-Mar-2014	09:34	Not applicable
Msimain.sdb	Not applicable	2,757,380	12-Mar-2014	09:34	Not applicable
Acgenral.dll	6.3.9600.17021	305,664	09-Feb-2014	08:17	x64
Acwinrt.dll	6.3.9600.16384	10,240	21-Aug-2013	18:54	x64
Acspecfc.dll	6.3.9600.16427	41,472	12-Oct-2013	07:24	x64
Drvmain.sdb	Not applicable	119,562	12-Mar-2014	09:34	Not applicable
Acres.dll	6.3.9600.16384	310,784	21-Aug-2013	13:16	x86
Sysmain.sdb	Not applicable	3,834,192	12-Mar-2014	09:37	Not applicable
Acgenral.dll	6.3.9600.17050	2,441,216	12-Mar-2014	15:01	x86
Acwinrt.dll	6.3.9600.16384	8,704	21-Aug-2013	11:47	x86
Acspecfc.dll	6.3.9600.17050	442,880	12-Mar-2014	15:08	x86

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

Additional file information for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2

Additional file information for Windows RT 8.1

File property	Value
File name	Arm_4defb2f8c28d473f9741db2e35b9cbaf_31bf3856ad364e35_6.3.9600.17050_none_c2d68013b6e5d5a1.manifest
File version	Not applicable
File size	725
Date (UTC)	13-Mar-2014
Time (UTC)	02:56
Platform	Not applicable
File name	Arm_747a48ad5ce7536376e259de2236e74b_31bf3856ad364e35_6.3.9600.17050_none_01fbe39655f0e005.manifest
File version	Not applicable
File size	725
Date (UTC)	13-Mar-2014
Time (UTC)	02:56
Platform	Not applicable
File name	Arm_aecfaa4b070673ecfec029e9660f8dcc_31bf3856ad364e35_6.3.9600.17050_none_8dcc43702d699505.manifest
File version	Not applicable
File size	725
Date (UTC)	13-Mar-2014
Time (UTC)	02:56
Platform	Not applicable
File name	Arm_c82aecd69dba9863548c604759fcb2e0_31bf3856ad364e35_6.3.9600.17050_none_ec2934c714edff9f.manifest
File version	Not applicable
File size	725
Date (UTC)	13-Mar-2014
Time (UTC)	02:56
Platform	Not applicable
File name	Arm_e45636d54d6f8fb52e5565bd4aa7a349_31bf3856ad364e35_6.3.9600.17050_none_b136dd63969ce1e3.manifest
File version	Not applicable
File size	725
Date (UTC)	13-Mar-2014
Time (UTC)	02:56
Platform	Not applicable
File name	Arm_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17050_none_a0e0c12b0dce88ce.manifest
File version	Not applicable
File size	3,312
Date (UTC)	13-Mar-2014
Time (UTC)	02:56
Platform	Not applicable
File name	Arm_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17050_none_a0e1c1750dcda225.manifest
File version	Not applicable
File size	2,558
Date (UTC)	12-Mar-2014
Time (UTC)	18:25
Platform	Not applicable
File name	Arm_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17050_none_a0e2c1bf0dccbb7c.manifest
File version	Not applicable
File size	3,310
Date (UTC)	13-Mar-2014
Time (UTC)	02:56
Platform	Not applicable
File name	Arm_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17050_none_a0e3c2090dcbd4d3.manifest
File version	Not applicable
File size	2,555
Date (UTC)	13-Mar-2014
Time (UTC)	02:56
Platform	Not applicable
File name	Arm_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17050_none_a0e6c2e70dc920d8.manifest
File version	Not applicable
File size	1,867
Date (UTC)	12-Mar-2014
Time (UTC)	18:25
Platform	Not applicable
File name	Update.mum
File version	Not applicable
File size	1,804
Date (UTC)	13-Mar-2014
Time (UTC)	02:56
Platform	Not applicable

Additional files for all supported x86-based versions of Windows 8.1

File property	Value
File name	Update.mum
File version	Not applicable
File size	1,805
Date (UTC)	13-Mar-2014
Time (UTC)	03:56
Platform	Not applicable
File name	X86_3f6e3db9e16771a430c40339dcae218f_31bf3856ad364e35_6.3.9600.17050_none_5e629d9729788529.manifest
File version	Not applicable
File size	725
Date (UTC)	13-Mar-2014
Time (UTC)	03:56
Platform	Not applicable
File name	X86_43c6ce17f1038ecb2f2002736b886701_31bf3856ad364e35_6.3.9600.17050_none_b7227650c2b8a904.manifest
File version	Not applicable
File size	725
Date (UTC)	13-Mar-2014
Time (UTC)	03:56
Platform	Not applicable
File name	X86_d5be9c95cffc0e5a63e3b23b1c4d1e22_31bf3856ad364e35_6.3.9600.17050_none_8329e310f31a370f.manifest
File version	Not applicable
File size	725
Date (UTC)	13-Mar-2014
Time (UTC)	03:56
Platform	Not applicable
File name	X86_eccebdcecd263b45e1e573ff5a89ac73_31bf3856ad364e35_6.3.9600.17050_none_9115688d1b7a61ee.manifest
File version	Not applicable
File size	725
Date (UTC)	13-Mar-2014
Time (UTC)	03:56
Platform	Not applicable
File name	X86_fcc36e2daafa63b41b19c3e506c95c29_31bf3856ad364e35_6.3.9600.17050_none_1f0479ea9014f8ee.manifest
File version	Not applicable
File size	725
Date (UTC)	13-Mar-2014
Time (UTC)	03:56
Platform	Not applicable
File name	X86_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17050_none_a0de4ed30dd16a08.manifest
File version	Not applicable
File size	3,312
Date (UTC)	13-Mar-2014
Time (UTC)	03:56
Platform	Not applicable
File name	X86_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17050_none_a0df4f1d0dd0835f.manifest
File version	Not applicable
File size	2,558
Date (UTC)	12-Mar-2014
Time (UTC)	19:15
Platform	Not applicable
File name	X86_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17050_none_a0e04f670dcf9cb6.manifest
File version	Not applicable
File size	3,310
Date (UTC)	13-Mar-2014
Time (UTC)	03:56
Platform	Not applicable
File name	X86_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17050_none_a0e14fb10dceb60d.manifest
File version	Not applicable
File size	2,552
Date (UTC)	12-Mar-2014
Time (UTC)	19:15
Platform	Not applicable
File name	X86_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17050_none_a0e4508f0dcc0212.manifest
File version	Not applicable
File size	1,867
Date (UTC)	12-Mar-2014
Time (UTC)	19:15
Platform	Not applicable

Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File property	Value
File name	Amd64_1754e24df216b3f566ac17cb7025355a_31bf3856ad364e35_6.3.9600.17050_none_18b44ebd0cbaa398.manifest
File version	Not applicable
File size	729
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_43c6ce17f1038ecb2f2002736b886701_31bf3856ad364e35_6.3.9600.17050_none_134111d47b161a3a.manifest
File version	Not applicable
File size	727
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_8f27935a5c0b0ef3346899773f622d2b_31bf3856ad364e35_6.3.9600.17050_none_6be182a326d96be9.manifest
File version	Not applicable
File size	729
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_8f63e78c429bde14343f4bcd8c1f642e_31bf3856ad364e35_6.3.9600.17050_none_9f9a28a52ec105ff.manifest
File version	Not applicable
File size	729
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_a0f83ba705bef3e7052b91eff2dba670_31bf3856ad364e35_6.3.9600.17050_none_e788708bf7e6e40f.manifest
File version	Not applicable
File size	729
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_c04c1d8d48ea057b12ba0589ff0c7846_31bf3856ad364e35_6.3.9600.17050_none_a8bb1ab02e84f765.manifest
File version	Not applicable
File size	729
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_cce7175f6382f0b2f5730b7bcf10acca_31bf3856ad364e35_6.3.9600.17050_none_1d66e7cb00ce5b44.manifest
File version	Not applicable
File size	729
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_d5be9c95cffc0e5a63e3b23b1c4d1e22_31bf3856ad364e35_6.3.9600.17050_none_df487e94ab77a845.manifest
File version	Not applicable
File size	727
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_de5c34066d2bc4c95bfd94254c066846_31bf3856ad364e35_6.3.9600.17050_none_b70867dbf891005f.manifest
File version	Not applicable
File size	729
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_ed6b6df456016b63c4e96efddd7b2c81_31bf3856ad364e35_6.3.9600.17050_none_b1c898ca9270fc43.manifest
File version	Not applicable
File size	729
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17050_none_fcfcea56c62edb3e.manifest
File version	Not applicable
File size	2,573
Date (UTC)	12-Mar-2014
Time (UTC)	21:49
Platform	Not applicable
File name	Amd64_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17050_none_fcfdeaa0c62df495.manifest
File version	Not applicable
File size	2,562
Date (UTC)	12-Mar-2014
Time (UTC)	21:49
Platform	Not applicable
File name	Amd64_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17050_none_fcfeeaeac62d0dec.manifest
File version	Not applicable
File size	3,336
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17050_none_fcffeb34c62c2743.manifest
File version	Not applicable
File size	2,570
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Amd64_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17050_none_fd02ec12c6297348.manifest
File version	Not applicable
File size	1,869
Date (UTC)	12-Mar-2014
Time (UTC)	21:49
Platform	Not applicable
File name	Update.mum
File version	Not applicable
File size	2,939
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Wow64_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17050_none_075194a8fa8f9d39.manifest
File version	Not applicable
File size	3,314
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	Wow64_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17050_none_075294f2fa8eb690.manifest
File version	Not applicable
File size	1,141
Date (UTC)	12-Mar-2014
Time (UTC)	19:12
Platform	Not applicable
File name	Wow64_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17050_none_07579664fa8a3543.manifest
File version	Not applicable
File size	450
Date (UTC)	12-Mar-2014
Time (UTC)	19:12
Platform	Not applicable
File name	X86_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17050_none_a0e04f670dcf9cb6.manifest
File version	Not applicable
File size	3,310
Date (UTC)	13-Mar-2014
Time (UTC)	06:49
Platform	Not applicable
File name	X86_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17050_none_a0e14fb10dceb60d.manifest
File version	Not applicable
File size	2,552
Date (UTC)	12-Mar-2014
Time (UTC)	19:15
Platform	Not applicable

References

For more information about previously released compatibility update for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 in 2014, click the following article numbers to view the articles in the Microsoft Knowledge Base:

2930168 Compatibility update is available for Windows RT 8.1, Windows 8.1 and Windows Server 2012 R2: March 2014

2917931 Compatibility update is available for Windows RT 8.1, Windows 8.1 and Windows Server 2012 R2: February 2014

Third-party information disclaimer

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.

Last Updated: Apr 17, 2014