This cumulative update fixes several issuesin Microsoft Skype for Business Server 2015 core components. The version number of this update is 6.0.9319.88.
Issues that this cumulative update fixes
This cumulative update fixes the issues that were previously listed in the following Microsoft Knowledge Base articles:
- 3090687 September 2015 cumulative update 6.0.9319.72 for Skype for Business Server 2015 core components
- 3051958 June 2015 cumulative update 6.0.9319.55 for Skype for Business Server 2015 core components
How to install the cumulative update
To install the cumulative update for Microsoft Skype for Business Server 2015 core components, you must follow the steps that are described in the following article in the Microsoft Knowledge Base:
3061064 Updates for Skype for Business Server 2015
Note The Cumulative Server Update Installer applies all updates for the appropriate server role in one operation.
Prerequisites
There are no prerequisites for installing this cumulative update.
Registry information
To use one of the cumulative updates 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 cumulative update.
Update replacement information
This cumulative update replaces the September 2015 cumulative update 6.0.9319.72 for Skype for Business Server 2015 core components.
Update package installation information
To apply this cumulative update, you must follow the steps that are described in Updates for Skype for Business Server 2015 on computers that are running the following server roles:
- Skype for Business Server 2015 - Standard Edition server
- Skype for Business Server 2015 - Enterprise Edition - Front End server
- Skype for Business Server 2015 - Edge server
- Skype for Business Server 2015 - Director server
- Skype for Business Server 2015 - Stand-alone Mediation server
- Skype for Business Server 2015 - Persistent Chat Front End server
- Skype for Business Server 2015 - Video Interop server
- Skype for Business Server 2015 - Administration Tools
Removal information
You must first uninstall all cumulative updates of core components that are at version 6.0.9319.55 or a later version before you uninstall cumulative update 6.0.9319.55 (KB 3061059) for Skype for Business Server 2015 (Front End server and Edge server). Otherwise, you will experience an issue in which the RTCSRV service can't be started.
To remove both cumulative updates, follow these steps:
Note We recommend that you refer to the instructions that are described in Updates for Skype for Business Server 2015 when you remove both cumulative updates.
Click Control Panel, and then click Program.
Click Installed Updates.
Uninstall all updates of core components that are of version 6.0.9319.55 or a later version.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3098601) with version 6.0.9319.88. Then, click Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3090687) with version 6.0.9319.72. Then, click Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3051958) with version 6.0.9319.55. Then, click Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3061059) with version 6.0.9319.55. Then, click Uninstall.
File information
The global version of this cumulative update uses a Microsoft Windows Installer package to install the cumulative update. The dates and the times for these files are listed in Coordinated Universal Time (UTC) in the following table. When you view the file information, the date 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.
After the update is installed, the global version of this update has the file attributes, or a later version of the file attributes, that are listed in the following table:
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Dbrtc.sql | Not applicable | 2,141,767 | 11-Jun-2015 | 04:06 | Not applicable |
| File_bootstrapper.resources.dll.de_de | 6.0.9319.0 | 20,208 | 26-Sep-2015 | 10:27 | Not applicable |
| File_bootstrapper.resources.dll.es_es | 6.0.9319.0 | 20,208 | 26-Sep-2015 | 10:27 | Not applicable |
| File_bootstrapper.resources.dll.fr_fr | 6.0.9319.0 | 20,200 | 26-Sep-2015 | 10:27 | Not applicable |
| File_bootstrapper.resources.dll.it_it | 6.0.9319.0 | 20,200 | 26-Sep-2015 | 10:28 | Not applicable |
| File_bootstrapper.resources.dll.ja_jp | 6.0.9319.0 | 20,200 | 26-Sep-2015 | 10:28 | Not applicable |
| File_bootstrapper.resources.dll.ko_kr | 6.0.9319.0 | 20,208 | 26-Sep-2015 | 10:28 | Not applicable |
| File_bootstrapper.resources.dll.pt_br | 6.0.9319.0 | 20,208 | 26-Sep-2015 | 10:28 | Not applicable |
| File_bootstrapper.resources.dll.ru_ru | 6.0.9319.0 | 20,712 | 26-Sep-2015 | 10:28 | Not applicable |
| File_bootstrapper.resources.dll.zh_cn | 6.0.9319.0 | 20,200 | 26-Sep-2015 | 10:28 | Not applicable |
| File_bootstrapper.resources.dll.zh_tw | 6.0.9319.0 | 20,200 | 26-Sep-2015 | 10:28 | Not applicable |
| File_default.tmx | Not applicable | 21,018,165 | 26-Sep-2015 | 09:50 | Not applicable |
| File_default.xml | Not applicable | 1,660,003 | 26-Sep-2015 | 09:50 | Not applicable |
| File_deploy.resources.dll.de_de | 6.0.9319.0 | 257,744 | 26-Sep-2015 | 10:28 | Not applicable |
| File_deploy.resources.dll.es_es | 6.0.9319.0 | 257,240 | 26-Sep-2015 | 10:28 | Not applicable |
| File_deploy.resources.dll.fr_fr | 6.0.9319.0 | 258,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_deploy.resources.dll.it_it | 6.0.9319.0 | 257,240 | 26-Sep-2015 | 10:28 | Not applicable |
| File_deploy.resources.dll.ja_jp | 6.0.9319.0 | 262,352 | 26-Sep-2015 | 10:28 | Not applicable |
| File_deploy.resources.dll.ko_kr | 6.0.9319.0 | 257,744 | 26-Sep-2015 | 10:28 | Not applicable |
| File_deploy.resources.dll.pt_br | 6.0.9319.0 | 257,232 | 26-Sep-2015 | 10:28 | Not applicable |
| File_deploy.resources.dll.ru_ru | 6.0.9319.0 | 273,616 | 26-Sep-2015 | 10:28 | Not applicable |
| File_deploy.resources.dll.zh_cn | 6.0.9319.0 | 251,608 | 26-Sep-2015 | 10:28 | Not applicable |
| File_deploy.resources.dll.zh_tw | 6.0.9319.0 | 252,120 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_deviceupdate.resources.dll.de_de | 6.0.9319.0 | 31,472 | 26-Sep-2015 | 10:25 | Not applicable |
| File_gac_deviceupdate.resources.dll.es_es | 6.0.9319.0 | 31,464 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_deviceupdate.resources.dll.fr_fr | 6.0.9319.0 | 31,472 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_deviceupdate.resources.dll.it_it | 6.0.9319.0 | 31,464 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_deviceupdate.resources.dll.ja_jp | 6.0.9319.0 | 31,464 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_deviceupdate.resources.dll.ko_kr | 6.0.9319.0 | 31,472 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_deviceupdate.resources.dll.pt_br | 6.0.9319.0 | 31,472 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_deviceupdate.resources.dll.ru_ru | 6.0.9319.0 | 31,472 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_deviceupdate.resources.dll.zh_cn | 6.0.9319.0 | 30,960 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_deviceupdate.resources.dll.zh_tw | 6.0.9319.0 | 30,960 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.acd.common.resources.dll.de_de | 6.0.9319.0 | 20,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.acd.common.resources.dll.es_es | 6.0.9319.0 | 20,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.acd.common.resources.dll.fr_fr | 6.0.9319.0 | 20,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.acd.common.resources.dll.it_it | 6.0.9319.0 | 20,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.acd.common.resources.dll.ja_jp | 6.0.9319.0 | 20,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.acd.common.resources.dll.ko_kr | 6.0.9319.0 | 20,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.acd.common.resources.dll.pt_br | 6.0.9319.0 | 20,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.acd.common.resources.dll.ru_ru | 6.0.9319.0 | 20,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.acd.common.resources.dll.zh_cn | 6.0.9319.0 | 20,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.acd.common.resources.dll.zh_tw | 6.0.9319.0 | 20,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.admin.authenticationhelper.dll.de_de | 6.0.9319.0 | 24,416 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.admin.authenticationhelper.dll.es_es | 6.0.9319.0 | 24,424 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.admin.authenticationhelper.dll.fr_fr | 6.0.9319.0 | 24,424 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.admin.authenticationhelper.dll.it_it | 6.0.9319.0 | 24,416 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.admin.authenticationhelper.dll.ja_jp | 6.0.9319.0 | 24,928 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.admin.authenticationhelper.dll.ko_kr | 6.0.9319.0 | 24,424 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.admin.authenticationhelper.dll.pt_br | 6.0.9319.0 | 24,416 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.admin.authenticationhelper.dll.ru_ru | 6.0.9319.0 | 25,448 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.admin.authenticationhelper.dll.zh_cn | 6.0.9319.0 | 23,392 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.admin.authenticationhelper.dll.zh_tw | 6.0.9319.0 | 23,400 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.clscontrollerlib.resources.dll.de_de | 6.0.9319.0 | 27,960 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.clscontrollerlib.resources.dll.es_es | 6.0.9319.0 | 27,960 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.clscontrollerlib.resources.dll.fr_fr | 6.0.9319.0 | 28,984 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.clscontrollerlib.resources.dll.it_it | 6.0.9319.0 | 28,472 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.clscontrollerlib.resources.dll.ja_jp | 6.0.9319.0 | 29,496 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.clscontrollerlib.resources.dll.ko_kr | 6.0.9319.0 | 28,984 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.clscontrollerlib.resources.dll.pt_br | 6.0.9319.0 | 27,960 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.clscontrollerlib.resources.dll.ru_ru | 6.0.9319.0 | 30,520 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.clscontrollerlib.resources.dll.zh_cn | 6.0.9319.0 | 27,448 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.clscontrollerlib.resources.dll.zh_tw | 6.0.9319.0 | 27,448 | 26-Sep-2015 | 10:29 | Not applicable |
| File_gac_microsoft.rtc.collaboration.persistentchat.dll.de_de | 6.0.9319.0 | 25,456 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.collaboration.persistentchat.dll.es_es | 6.0.9319.0 | 25,448 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.collaboration.persistentchat.dll.fr_fr | 6.0.9319.0 | 25,960 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.collaboration.persistentchat.dll.it_it | 6.0.9319.0 | 24,936 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.collaboration.persistentchat.dll.ja_jp | 6.0.9319.0 | 25,960 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.collaboration.persistentchat.dll.ko_kr | 6.0.9319.0 | 25,448 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.collaboration.persistentchat.dll.pt_br | 6.0.9319.0 | 24,936 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.collaboration.persistentchat.dll.ru_ru | 6.0.9319.0 | 26,992 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.collaboration.persistentchat.dll.zh_cn | 6.0.9319.0 | 24,432 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.collaboration.persistentchat.dll.zh_tw | 6.0.9319.0 | 24,424 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.internal.applicationsharing.viewingnet.dll | 6.0.8886.22 | 412,456 | 11-May-2015 | 03:14 | x86 |
| File_gac_microsoft.rtc.internal.applicationsharingnet.dll | 6.0.8886.22 | 170,280 | 11-May-2015 | 03:14 | x86 |
| File_gac_microsoft.rtc.internal.setup.xamluilib.resources.dll.de_de | 6.0.9319.0 | 144,216 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.internal.setup.xamluilib.resources.dll.es_es | 6.0.9319.0 | 144,216 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.internal.setup.xamluilib.resources.dll.fr_fr | 6.0.9319.0 | 144,216 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.internal.setup.xamluilib.resources.dll.it_it | 6.0.9319.0 | 144,216 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.internal.setup.xamluilib.resources.dll.ja_jp | 6.0.9319.0 | 144,216 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.internal.setup.xamluilib.resources.dll.ko_kr | 6.0.9319.0 | 144,216 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.internal.setup.xamluilib.resources.dll.pt_br | 6.0.9319.0 | 144,216 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.internal.setup.xamluilib.resources.dll.ru_ru | 6.0.9319.0 | 144,216 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.internal.setup.xamluilib.resources.dll.zh_cn | 6.0.9319.0 | 144,216 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.internal.setup.xamluilib.resources.dll.zh_tw | 6.0.9319.0 | 144,216 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.interop.user.dll | 6.0.9319.55 | 37,112 | 11-Jun-2015 | 06:02 | x86 |
| File_gac_microsoft.rtc.management.adconnect.resources.dll.de_de | 6.0.9319.0 | 48,968 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.adconnect.resources.dll.es_es | 6.0.9319.0 | 47,944 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.adconnect.resources.dll.fr_fr | 6.0.9319.0 | 51,016 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.adconnect.resources.dll.it_it | 6.0.9319.0 | 47,944 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.adconnect.resources.dll.ja_jp | 6.0.9319.0 | 52,040 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.adconnect.resources.dll.ko_kr | 6.0.9319.0 | 49,480 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.management.adconnect.resources.dll.pt_br | 6.0.9319.0 | 48,456 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.adconnect.resources.dll.ru_ru | 6.0.9319.0 | 57,160 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.adconnect.resources.dll.zh_cn | 6.0.9319.0 | 45,384 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.management.adconnect.resources.dll.zh_tw | 6.0.9319.0 | 44,360 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.archjournal.resources.dll.de_de | 6.0.9319.0 | 24,400 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.archjournal.resources.dll.es_es | 6.0.9319.0 | 24,400 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.management.archjournal.resources.dll.fr_fr | 6.0.9319.0 | 24,912 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.archjournal.resources.dll.it_it | 6.0.9319.0 | 24,400 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.archjournal.resources.dll.ja_jp | 6.0.9319.0 | 24,912 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.management.archjournal.resources.dll.ko_kr | 6.0.9319.0 | 24,912 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.archjournal.resources.dll.pt_br | 6.0.9319.0 | 24,400 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.archjournal.resources.dll.ru_ru | 6.0.9319.0 | 25,936 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.archjournal.resources.dll.zh_cn | 6.0.9319.0 | 23,888 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.management.archjournal.resources.dll.zh_tw | 6.0.9319.0 | 23,888 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.common.resources.dll.de_de | 6.0.9319.0 | 54,584 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.management.common.resources.dll.es_es | 6.0.9319.0 | 53,056 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.common.resources.dll.fr_fr | 6.0.9319.0 | 55,104 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.common.resources.dll.it_it | 6.0.9319.0 | 52,544 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.management.common.resources.dll.ja_jp | 6.0.9319.0 | 57,664 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.common.resources.dll.ko_kr | 6.0.9319.0 | 53,568 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.common.resources.dll.pt_br | 6.0.9319.0 | 52,032 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.common.resources.dll.ru_ru | 6.0.9319.0 | 63,808 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.common.resources.dll.zh_cn | 6.0.9319.0 | 47,936 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.common.resources.dll.zh_tw | 6.0.9319.0 | 47,936 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.core.de_de | 6.0.9319.55 | 1,019,184 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.core.es_es | 6.0.9319.55 | 1,019,184 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.core.fr_fr | 6.0.9319.55 | 1,022,256 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.core.it_it | 6.0.9319.55 | 1,017,648 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.core.ja_jp | 6.0.9319.55 | 1,028,400 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.core.ko_kr | 6.0.9319.55 | 1,021,232 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.core.pt_br | 6.0.9319.55 | 1,017,648 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.core.ru_ru | 6.0.9319.55 | 1,042,736 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.core.zh_cn | 6.0.9319.55 | 1,010,480 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.core.zh_tw | 6.0.9319.55 | 1,010,480 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.dbsetup.dll | 6.0.9319.55 | 173,328 | 11-Jun-2015 | 05:57 | x86 |
| File_gac_microsoft.rtc.management.dbsetup.resources.dll.de_de | 6.0.9319.55 | 46,912 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.dbsetup.resources.dll.es_es | 6.0.9319.55 | 45,888 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.dbsetup.resources.dll.fr_fr | 6.0.9319.55 | 50,496 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.dbsetup.resources.dll.it_it | 6.0.9319.55 | 46,912 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.dbsetup.resources.dll.ja_jp | 6.0.9319.55 | 50,496 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.dbsetup.resources.dll.ko_kr | 6.0.9319.55 | 47,936 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.dbsetup.resources.dll.pt_br | 6.0.9319.55 | 45,376 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.dbsetup.resources.dll.ru_ru | 6.0.9319.55 | 54,080 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.dbsetup.resources.dll.zh_cn | 6.0.9319.55 | 43,328 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.dbsetup.resources.dll.zh_tw | 6.0.9319.55 | 43,328 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.deployment.de_de | 6.0.9319.55 | 496,464 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.deployment.dll | 6.0.9319.55 | 2,653,984 | 11-Jun-2015 | 05:57 | x86 |
| File_gac_microsoft.rtc.management.deployment.es_es | 6.0.9319.55 | 492,880 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.deployment.fr_fr | 6.0.9319.55 | 502,608 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.deployment.it_it | 6.0.9319.55 | 491,856 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.deployment.ja_jp | 6.0.9319.55 | 511,824 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.deployment.ko_kr | 6.0.9319.55 | 497,488 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.deployment.pt_br | 6.0.9319.55 | 490,320 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.deployment.ru_ru | 6.0.9319.55 | 539,472 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.deployment.zh_cn | 6.0.9319.55 | 471,376 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.deployment.zh_tw | 6.0.9319.55 | 470,352 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.dll | 6.0.9319.55 | 5,755,120 | 11-Jun-2015 | 05:56 | x86 |
| File_gac_microsoft.rtc.management.resources.dll.de_de | 6.0.9319.55 | 710,432 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.resources.dll.es_es | 6.0.9319.55 | 703,264 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.management.resources.dll.fr_fr | 6.0.9319.55 | 744,224 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.resources.dll.it_it | 6.0.9319.55 | 688,416 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.resources.dll.ja_jp | 6.0.9319.55 | 771,360 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.resources.dll.ko_kr | 6.0.9319.55 | 708,888 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.resources.dll.pt_br | 6.0.9319.55 | 689,432 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.resources.dll.ru_ru | 6.0.9319.55 | 890,656 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.resources.dll.zh_cn | 6.0.9319.55 | 614,680 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.management.resources.dll.zh_tw | 6.0.9319.55 | 615,192 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.writableconfig.de_de | 6.0.9319.55 | 36,704 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.writableconfig.es_es | 6.0.9319.55 | 36,192 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.writableconfig.fr_fr | 6.0.9319.55 | 37,216 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.writableconfig.it_it | 6.0.9319.55 | 36,192 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.writableconfig.ja_jp | 6.0.9319.55 | 38,752 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.writableconfig.ko_kr | 6.0.9319.55 | 37,216 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.writableconfig.pt_br | 6.0.9319.55 | 35,680 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.writableconfig.ru_ru | 6.0.9319.55 | 42,848 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.management.writableconfig.zh_cn | 6.0.9319.55 | 34,144 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.management.writableconfig.zh_tw | 6.0.9319.55 | 34,656 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.data.resources.dll.de_de | 6.0.9319.0 | 29,968 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.data.resources.dll.es_es | 6.0.9319.0 | 28,944 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.data.resources.dll.fr_fr | 6.0.9319.0 | 29,968 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.data.resources.dll.it_it | 6.0.9319.0 | 29,456 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.data.resources.dll.ja_jp | 6.0.9319.0 | 31,000 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.data.resources.dll.ko_kr | 6.0.9319.0 | 29,456 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.data.resources.dll.pt_br | 6.0.9319.0 | 29,456 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.data.resources.dll.ru_ru | 6.0.9319.0 | 32,528 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.data.resources.dll.zh_cn | 6.0.9319.0 | 28,432 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.data.resources.dll.zh_tw | 6.0.9319.0 | 27,928 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.management.resources.dll.de_de | 6.0.9319.0 | 61,744 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.management.resources.dll.es_es | 6.0.9319.0 | 61,232 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.management.resources.dll.fr_fr | 6.0.9319.0 | 64,816 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.management.resources.dll.it_it | 6.0.9319.0 | 60,208 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.management.resources.dll.ja_jp | 6.0.9319.0 | 67,376 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.management.resources.dll.ko_kr | 6.0.9319.0 | 61,744 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.management.resources.dll.pt_br | 6.0.9319.0 | 60,720 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.management.resources.dll.ru_ru | 6.0.9319.0 | 74,032 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.management.resources.dll.zh_cn | 6.0.9319.0 | 55,600 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.rgs.management.resources.dll.zh_tw | 6.0.9319.0 | 55,600 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.serverconfiguration.resources.dll.de_de | 6.0.9319.0 | 23,368 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.serverconfiguration.resources.dll.es_es | 6.0.9319.0 | 23,368 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.serverconfiguration.resources.dll.fr_fr | 6.0.9319.0 | 23,368 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.serverconfiguration.resources.dll.it_it | 6.0.9319.0 | 22,856 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.serverconfiguration.resources.dll.ja_jp | 6.0.9319.0 | 23,368 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.serverconfiguration.resources.dll.ko_kr | 6.0.9319.0 | 23,368 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.serverconfiguration.resources.dll.pt_br | 6.0.9319.0 | 23,360 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.serverconfiguration.resources.dll.ru_ru | 6.0.9319.0 | 23,872 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.serverconfiguration.resources.dll.zh_cn | 6.0.9319.0 | 22,856 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.serverconfiguration.resources.dll.zh_tw | 6.0.9319.0 | 22,856 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.synthetictransactions.resources.dll.de_de | 6.0.9319.0 | 510,800 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.synthetictransactions.resources.dll.es_es | 6.0.9319.0 | 511,312 | 26-Sep-2015 | 10:27 | Not applicable |
| File_gac_microsoft.rtc.synthetictransactions.resources.dll.fr_fr | 6.0.9319.0 | 519,496 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.synthetictransactions.resources.dll.it_it | 6.0.9319.0 | 509,776 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.synthetictransactions.resources.dll.ja_jp | 6.0.9319.0 | 526,160 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.synthetictransactions.resources.dll.ko_kr | 6.0.9319.0 | 511,312 | 26-Sep-2015 | 10:26 | Not applicable |
| File_gac_microsoft.rtc.synthetictransactions.resources.dll.pt_br | 6.0.9319.0 | 507,216 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.synthetictransactions.resources.dll.ru_ru | 6.0.9319.0 | 554,832 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.synthetictransactions.resources.dll.zh_cn | 6.0.9319.0 | 491,344 | 26-Sep-2015 | 10:28 | Not applicable |
| File_gac_microsoft.rtc.synthetictransactions.resources.dll.zh_tw | 6.0.9319.0 | 491,344 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.collaborationnet.resources.dll.de_de | 6.0.9319.0 | 149,808 | 26-Sep-2015 | 10:26 | Not applicable |
| File_microsoft.rtc.collaborationnet.resources.dll.es_es | 6.0.9319.0 | 144,184 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.collaborationnet.resources.dll.fr_fr | 6.0.9319.0 | 151,352 | 26-Sep-2015 | 10:26 | Not applicable |
| File_microsoft.rtc.collaborationnet.resources.dll.it_it | 6.0.9319.0 | 144,184 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.collaborationnet.resources.dll.ja_jp | 6.0.9319.0 | 161,592 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.collaborationnet.resources.dll.ko_kr | 6.0.9319.0 | 147,768 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.collaborationnet.resources.dll.pt_br | 6.0.9319.0 | 144,184 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.collaborationnet.resources.dll.ru_ru | 6.0.9319.0 | 185,656 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.collaborationnet.resources.dll.zh_cn | 6.0.9319.0 | 125,240 | 26-Sep-2015 | 10:27 | Not applicable |
| File_microsoft.rtc.collaborationnet.resources.dll.zh_tw | 6.0.9319.0 | 125,752 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.management.core.dll | 6.0.9319.55 | 2,568,456 | 11-Jun-2015 | 05:55 | x86 |
| File_microsoft.rtc.management.dbsetup.dll | 6.0.9319.55 | 173,328 | 11-Jun-2015 | 05:57 | x86 |
| File_microsoft.rtc.management.deployment.bootstrapper.de_de | 6.0.9319.0 | 33,672 | 26-Sep-2015 | 10:27 | Not applicable |
| File_microsoft.rtc.management.deployment.bootstrapper.es_es | 6.0.9319.0 | 33,672 | 26-Sep-2015 | 10:27 | Not applicable |
| File_microsoft.rtc.management.deployment.bootstrapper.fr_fr | 6.0.9319.0 | 34,184 | 26-Sep-2015 | 10:27 | Not applicable |
| File_microsoft.rtc.management.deployment.bootstrapper.it_it | 6.0.9319.0 | 33,664 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.management.deployment.bootstrapper.ja_jp | 6.0.9319.0 | 35,712 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.management.deployment.bootstrapper.ko_kr | 6.0.9319.0 | 33,672 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.management.deployment.bootstrapper.pt_br | 6.0.9319.0 | 33,160 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.management.deployment.bootstrapper.ru_ru | 6.0.9319.0 | 37,760 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.management.deployment.bootstrapper.zh_cn | 6.0.9319.0 | 31,624 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.management.deployment.bootstrapper.zh_tw | 6.0.9319.0 | 31,616 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.management.update.resources.dll.de_de | 6.0.9319.0 | 20,288 | 26-Sep-2015 | 10:27 | Not applicable |
| File_microsoft.rtc.management.update.resources.dll.es_es | 6.0.9319.0 | 20,288 | 26-Sep-2015 | 10:26 | Not applicable |
| File_microsoft.rtc.management.update.resources.dll.fr_fr | 6.0.9319.0 | 20,288 | 26-Sep-2015 | 10:26 | Not applicable |
| File_microsoft.rtc.management.update.resources.dll.it_it | 6.0.9319.0 | 20,280 | 26-Sep-2015 | 10:26 | Not applicable |
| File_microsoft.rtc.management.update.resources.dll.ja_jp | 6.0.9319.0 | 20,288 | 26-Sep-2015 | 10:26 | Not applicable |
| File_microsoft.rtc.management.update.resources.dll.ko_kr | 6.0.9319.0 | 20,280 | 26-Sep-2015 | 10:26 | Not applicable |
| File_microsoft.rtc.management.update.resources.dll.pt_br | 6.0.9319.0 | 20,288 | 26-Sep-2015 | 10:26 | Not applicable |
| File_microsoft.rtc.management.update.resources.dll.ru_ru | 6.0.9319.0 | 20,280 | 26-Sep-2015 | 10:28 | Not applicable |
| File_microsoft.rtc.management.update.resources.dll.zh_cn | 6.0.9319.0 | 20,288 | 26-Sep-2015 | 10:26 | Not applicable |
| File_microsoft.rtc.management.update.resources.dll.zh_tw | 6.0.9319.0 | 20,280 | 26-Sep-2015 | 10:26 | Not applicable |
| File_microsoft.rtc.management.writableconfig.dll | 6.0.9319.55 | 2,174,256 | 11-Jun-2015 | 05:57 | x86 |
| File_ocsumutil.resources.dll.de_de | 6.0.9319.0 | 129,248 | 26-Sep-2015 | 10:25 | Not applicable |
| File_ocsumutil.resources.dll.es_es | 6.0.9319.0 | 129,248 | 26-Sep-2015 | 10:25 | Not applicable |
| File_ocsumutil.resources.dll.fr_fr | 6.0.9319.0 | 130,272 | 26-Sep-2015 | 10:25 | Not applicable |
| File_ocsumutil.resources.dll.it_it | 6.0.9319.0 | 129,248 | 26-Sep-2015 | 10:28 | Not applicable |
| File_ocsumutil.resources.dll.ja_jp | 6.0.9319.0 | 130,784 | 26-Sep-2015 | 10:28 | Not applicable |
| File_ocsumutil.resources.dll.ko_kr | 6.0.9319.0 | 128,736 | 26-Sep-2015 | 10:25 | Not applicable |
| File_ocsumutil.resources.dll.pt_br | 6.0.9319.0 | 128,224 | 26-Sep-2015 | 10:25 | Not applicable |
| File_ocsumutil.resources.dll.ru_ru | 6.0.9319.0 | 136,416 | 26-Sep-2015 | 10:28 | Not applicable |
| File_ocsumutil.resources.dll.zh_cn | 6.0.9319.0 | 126,176 | 26-Sep-2015 | 10:28 | Not applicable |
| File_ocsumutil.resources.dll.zh_tw | 6.0.9319.0 | 126,688 | 26-Sep-2015 | 10:28 | Not applicable |
| File_reportsetup.resources.dll.de_de | 6.0.9319.0 | 20,712 | 26-Sep-2015 | 10:27 | Not applicable |
| File_reportsetup.resources.dll.es_es | 6.0.9319.0 | 20,712 | 26-Sep-2015 | 10:27 | Not applicable |
| File_reportsetup.resources.dll.fr_fr | 6.0.9319.0 | 20,712 | 26-Sep-2015 | 10:27 | Not applicable |
| File_reportsetup.resources.dll.it_it | 6.0.9319.0 | 20,712 | 26-Sep-2015 | 10:28 | Not applicable |
| File_reportsetup.resources.dll.ja_jp | 6.0.9319.0 | 20,712 | 26-Sep-2015 | 10:28 | Not applicable |
| File_reportsetup.resources.dll.ko_kr | 6.0.9319.0 | 20,712 | 26-Sep-2015 | 10:28 | Not applicable |
| File_reportsetup.resources.dll.pt_br | 6.0.9319.0 | 20,712 | 26-Sep-2015 | 10:28 | Not applicable |
| File_reportsetup.resources.dll.ru_ru | 6.0.9319.0 | 20,704 | 26-Sep-2015 | 10:28 | Not applicable |
| File_reportsetup.resources.dll.zh_cn | 6.0.9319.0 | 20,200 | 26-Sep-2015 | 10:28 | Not applicable |
| File_reportsetup.resources.dll.zh_tw | 6.0.9319.0 | 20,200 | 26-Sep-2015 | 10:28 | Not applicable |
| File_rtcsres.dll.de_de | 6.0.9319.55 | 1,765,040 | 11-Jun-2015 | 06:01 | Not applicable |
| File_rtcsres.dll.en_us | 6.0.9319.55 | 1,487,024 | 11-Jun-2015 | 06:01 | Not applicable |
| File_rtcsres.dll.es_es | 6.0.9319.55 | 1,766,064 | 11-Jun-2015 | 06:01 | Not applicable |
| File_rtcsres.dll.fr_fr | 6.0.9319.55 | 1,814,192 | 11-Jun-2015 | 06:01 | Not applicable |
| File_rtcsres.dll.it_it | 6.0.9319.55 | 1,734,832 | 11-Jun-2015 | 06:01 | Not applicable |
| File_rtcsres.dll.ja_jp | 6.0.9319.55 | 908,464 | 11-Jun-2015 | 06:01 | Not applicable |
| File_rtcsres.dll.ko_kr | 6.0.9319.55 | 857,776 | 11-Jun-2015 | 06:01 | Not applicable |
| File_rtcsres.dll.pt_br | 6.0.9319.55 | 1,677,488 | 11-Jun-2015 | 06:01 | Not applicable |
| File_rtcsres.dll.ru_ru | 6.0.9319.55 | 1,631,920 | 11-Jun-2015 | 06:01 | Not applicable |
| File_rtcsres.dll.zh_cn | 6.0.9319.55 | 629,424 | 11-Jun-2015 | 06:01 | Not applicable |
| File_rtcsres.dll.zh_tw | 6.0.9319.55 | 626,352 | 11-Jun-2015 | 06:01 | Not applicable |
| File_wrtcesproxy.dll | 6.0.9319.55 | 37,568 | 11-Jun-2015 | 06:01 | x64 |
References
See the general information about the standard terminology that Microsoft uses to describe software updates.
Get the latest cumulative update for Skype for Business Server 2015.