This cumulative update fixes several issues in Skype for Business Server 2015, Front End Server and Edge Server. The version number of this update is 6.0.9319.537.
Note Server-side conversation history in branch site deployments is no longer supported in the March 2016 cumulative update.
Issues that the cumulative update fixes
This cumulative update fixes the following issues:
- KB 4343061 Event ID 1000 (0xc0000005) and RtcSrv.exe of the SBA/SBS crashes after startup in Lync Server 2013
- KB 4458683 Can't switch the meeting audio to a UCWA client in Skype for Business Server 2015
- KB 4458682 "Failed creating application activity" error when you use the Test-CsUcwaConference cmdlet in Skype for Business Server 2015
- KB 4458677 Escalation to LBR VoIP user fails when a same site LBR user is in a P2P call with a PSTN user in Skype for Business Server 2015
- KB 4458693 Can't join a LBR enabled conference after a user uses the "Call me at" feature in Skype for Business Server 2015
- KB 4464370 Skype for Business UCWA clients can't be distinguished on CDR report if connection is internal or external
- KB 4458697 Skype for Business Front-End servers connecting to Exchange online for OAuth doesn't use proxy server
- KB 4470531 Support moving users from on-premises to Teams in Skype for Business Server 2015
This cumulative update also fixes the issues that were previously listed in the following Microsoft Knowledge Base articles:
- KB 4340904 July 2018 cumulative update 6.0.9319.534 for Skype for Business Server 2015, Front End Server and Edge Server
- KB 4086059 March 2018 cumulative update 6.0.9319.516 for Skype for Business Server 2015, Front End Server and Edge Server
- KB 4074701 January 2018 cumulative update 6.0.9319.514 for Skype for Business Server 2015, Front End Server and Edge Server
- KB 4036312 December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, Front End Server and Edge Server
- KB 4012621 May 2017 cumulative update 6.0.9319.281 for Skype for Business Server 2015, Front End server and Edge Ssrver
- KB 3207506 February 2017 cumulative update 6.0.9319.277 for Skype for Business Server 2015, Front End server and Edge server
- KB 3199093 November 2016 cumulative update 6.0.9319.272 for Skype for Business Server 2015, Front End server and Edge server
- KB 3149227 June 2016 cumulative update 6.0.9319.259 for Skype for Business Server 2015, Front End server and Edge server
- KB 3134260 March 2016 cumulative update 6.0.9319.235 for Skype for Business Server 2015, Front End server and Edge server
- KB 3097645 November 2015 cumulative update 6.0.9319.102 for Skype for Business Server 2015, Front End server and Edge server
- KB 3061059 June 2015 cumulative update 6.0.9319.55 for Skype for Business Server 2015 (Front End server and Edge server)
How to install the update
To install the cumulative update for Skype for Business Server 2015, Front End Server and Edge Server, you must follow the steps that are described in Updates for Skype for Business Server 2015 (KB3061064).
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 don't 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 July 2018 cumulative update 6.0.9319.534 for Skype for Business Server 2015, Front End Server and Edge Server.
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 (KB3061064) 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
Removal information
Before you uninstall this cumulative update, you must first uninstall all cumulative updates of core components whose version number is 6.0.9319.55 or later for Skype for Business Server 2015, core components. Otherwise, you won't be able to start the RTCSRV service.
To remove both cumulative updates, follow these steps.
Note We recommend that you see the instructions that are described in Updates for Skype for Business Server 2015 (KB3061064) when you remove both cumulative updates.
Open Control Panel, and then select Program.
Select 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 (KB4464354) with version 6.0.9319.537. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB4340903) with version 6.0.9319.534. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB4075225) with version 6.0.9319.516. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB4074705) with version 6.0.9319.514. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB4036311) with version 6.0.9319.510. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB4012620) with version 6.0.9319.281. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3207502) with version 6.0.9319.277. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3199088) with version 6.0.9319.272. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3149226) version 6.0.9319.259. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3134259) version 6.0.9319.235. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3097644) version 6.0.9319.102. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Core Components (KB3090687) version 6.0.9319.72. Then, select Uninstall.
Uninstall the updates for Skype for Business Server 2015 (Front End server and Edge server) that are of version 6.0.9319.55 or a later version:
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB4464355) with version 6.0.9319.537. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB4340904) with version 6.0.9319.534. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB4086059) with version 6.0.9319.516. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB4074701) with version 6.0.9319.514. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB4036312) with version 6.0.9319.510. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB4012621) with version 6.0.9319.281. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3207506) with version 6.0.9319.277. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3199093) with version 6.0.9319.272. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3149227) version 6.0.9319.259. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3134260) version 6.0.9319.235. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3097645) version 6.0.9319.102. Then, select Uninstall.
Press and hold (or right-click) Skype for Business Server 2015, Front End Server (KB3061059) version 6.0.9319.72. Then, select 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 |
|---|---|---|---|---|---|
| File_apiem.dll | 6.0.9319.537 | 3,588,864 | 29-Oct-2018 | 05:44 | x64 |
| File_busyoptions.am | Not Applicable | 12,095 | 31-Mar-2017 | 16:20 | Not Applicable |
| File_busyoptions.exe | 6.0.9319.534 | 1,043,088 | 19-Jun-2018 | 04:23 | x86 |
| File_busyoptionsperf.dll | 6.0.9319.259 | 56,528 | 14-Jun-2016 | 07:19 | x64 |
| File_datacollectionperf.dll | 6.0.9319.102 | 58,584 | 28-Oct-2015 | 11:43 | x64 |
| File_exumrouting.exe | 6.0.9319.281 | 1,015,488 | 31-Mar-2017 | 18:24 | x86 |
| File_gac_microsoft.rtc.server.webinfrastructure.dll | 6.0.9319.510 | 3,808,536 | 10-Nov-2017 | 11:11 | x64 |
| File_inboundrouting.exe | 6.0.9319.534 | 472,200 | 19-Jun-2018 | 04:22 | x86 |
| File_inboundrulesengine.dll | 6.0.9319.534 | 749,704 | 19-Jun-2018 | 04:23 | x86 |
| File_instantur.exe | 6.0.9319.235 | 3,302,584 | 23-Feb-2016 | 23:21 | x64 |
| File_interclusterrouting.exe | 6.0.9319.235 | 998,112 | 23-Feb-2016 | 23:28 | x86 |
| File_lbrouting.am | Not Applicable | 19,284 | 27-Oct-2018 | 00:45 | Not Applicable |
| File_lbrouting.exe | 6.0.9319.537 | 938,240 | 29-Oct-2018 | 05:51 | x86 |
| File_microsoft.liveserver.dlexpansion.dll | 6.0.9319.281 | 524,048 | 31-Mar-2017 | 18:13 | x86 |
| File_microsoft.rtc.server.mcufactory.dll | 6.0.9319.281 | 1,081,616 | 31-Mar-2017 | 18:13 | x86 |
| File_microsoft.rtc.server.udcadapters.dll | 6.0.9319.537 | 1,184,816 | 29-Oct-2018 | 05:48 | x86 |
| File_microsoft.rtc.server.udcadapters.resources.dll.ar_sa | 6.0.9319.259 | 33,088 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.az_latn_az | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.be_by | 6.0.9319.259 | 33,600 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.bg_bg | 6.0.9319.259 | 34,112 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.ca_es | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.cs_cz | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.da_dk | 6.0.9319.259 | 31,040 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.de_de | 6.0.9319.259 | 32,064 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.el_gr | 6.0.9319.259 | 36,672 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.en_us | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.es_es | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.et_ee | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.eu_es | 6.0.9319.259 | 32,064 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.fa_ir | 6.0.9319.259 | 33,600 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.fil_ph | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.fi_fi | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.fr_fr | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.gl_es | 6.0.9319.259 | 31,040 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.he_il | 6.0.9319.259 | 32,064 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.hi_in | 6.0.9319.259 | 38,208 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.hr_hr | 6.0.9319.259 | 32,064 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.hu_hu | 6.0.9319.259 | 32,064 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.id_id | 6.0.9319.259 | 31,040 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.it_it | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.ja_jp | 6.0.9319.259 | 32,576 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.kk_kz | 6.0.9319.259 | 35,136 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.ko_kr | 6.0.9319.259 | 32,576 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.lt_lt | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.lv_lv | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.mk_mk | 6.0.9319.259 | 34,624 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.ms_my | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.nb_no | 6.0.9319.259 | 30,528 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.nl_nl | 6.0.9319.259 | 32,064 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.pl_pl | 6.0.9319.259 | 32,576 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.pt_br | 6.0.9319.259 | 31,040 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.pt_pt | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.ro_ro | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.ru_ru | 6.0.9319.259 | 35,136 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.sk_sk | 6.0.9319.259 | 32,064 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.sl_si | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.sq_al | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.sr_cyrl_rs | 6.0.9319.259 | 34,624 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.sr_latn_rs | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.sv_se | 6.0.9319.259 | 31,040 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.th_th | 6.0.9319.259 | 36,672 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.tr_tr | 6.0.9319.259 | 31,552 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.uk_ua | 6.0.9319.259 | 35,136 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.uz_latn_uz | 6.0.9319.259 | 31,040 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.vi_vn | 6.0.9319.259 | 32,064 | 14-Jun-2016 | 07:26 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.zh_cn | 6.0.9319.259 | 30,528 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_microsoft.rtc.server.udcadapters.resources.dll.zh_tw | 6.0.9319.259 | 30,528 | 14-Jun-2016 | 07:25 | Not Applicable |
| File_outboundrouting.exe | 6.0.9319.514 | 1,140,928 | 10-Jan-2018 | 15:10 | x86 |
| File_replicationapp.exe | 6.0.9319.281 | 566,472 | 31-Mar-2017 | 18:17 | x86 |
| File_routing.am | Not Applicable | 20,096 | 31-Mar-2017 | 16:20 | Not Applicable |
| File_rtcabattributeindexrules.xml | Not Applicable | 40,292 | 23-Oct-2015 | 02:15 | Not Applicable |
| File_rtcdbsyncagent.dll | 6.0.9319.510 | 378,552 | 10-Nov-2017 | 11:07 | x86 |
| File_rtcmrdrv64.sys | 6.0.9319.289 | 244,992 | 09-Jul-2018 | 21:44 | x64 |
| File_serveragent.dll | 6.0.9319.537 | 1,114,672 | 29-Oct-2018 | 05:48 | x86 |
| File_server_ | 15.1.544.14 | 1,051,696 | 29-Oct-2018 | 05:48 | Not Applicable |
| File_server_microsoft.rtc.internal.storage.lyss.dll | 6.0.9319.534 | 873,616 | 19-Jun-2018 | 04:24 | x86 |
| File_server_rtcaggregate.exe | 6.0.9319.235 | 297,152 | 23-Feb-2016 | 23:28 | x86 |
| File_server_rtchost.exe | 6.0.9319.534 | 382,600 | 19-Jun-2018 | 04:24 | x86 |
| File_server_rtcsrv.exe | 6.0.9319.534 | 833,680 | 19-Jun-2018 | 04:23 | x64 |
| File_sharedlineappearance.am | Not Applicable | 18,752 | 23-Oct-2015 | 02:16 | Not Applicable |
| File_sharedlineappearance.exe | 6.0.9319.534 | 1,032,328 | 19-Jun-2018 | 04:23 | x86 |
| File_sharedlineappearance.exe.config | Not Applicable | 402 | 23-Oct-2015 | 02:16 | Not Applicable |
| File_sipstack.dll | 6.0.9319.537 | 6,050,032 | 29-Oct-2018 | 05:50 | x64 |
| File_slaperf.dll | 6.0.9319.235 | 56,496 | 23-Feb-2016 | 23:21 | x64 |
| File_translationservice.am | Not Applicable | 11,980 | 11-Jun-2015 | 03:55 | Not Applicable |
| File_udcagent.am | Not Applicable | 12,797 | 18-May-2016 | 04:45 | Not Applicable |
| File_udcagent.exe | 6.0.9319.537 | 1,077,488 | 19-Dec-2018 | 02:25 | x86 |
| File_wrtces.dll | 6.0.9319.537 | 11,174,448 | 29-Oct-2018 | 05:49 | x64 |
Learn about the standard terminology that Microsoft uses to describe software updates.
Get the latest cumulative update for Skype for Business Server 2015.