SfB 2015 Resource Toolkit

This is my personal go-to page for essential Skype for Business resources.

My Lync *2013* Resource Toolkit is >here<, whilst the semi-retired Lync 2010 version is >here<.


SfB 2015 Server Security Update – October 2023

This security update changed two components on my Standard Edition Front-End. The new build number is 6.0.9319.869, up from last August’s 6.0.9319.853.

… and my post on the subject.

Client Update – May 2020

Kb 4484289. The official version number of this update is 15.0.5241.1000, although you’ll see it documented in Help/About as 15.0.5233.1000. This apparent discrepancy is confirmed by the ‘lync-x-none.msp file information’ details in the kb article.

There are no specific fixes listed, other than that “this update improves translations for multiple language versions of Skype for Business 2015 (Lync 2013).”

This is the client fix itself:

  • x86 (lync2013-kb4484289-fullfile-x86-glb.exe)
  • x64 (lync2013-kb4484289-fullfile-x64-glb.exe)

You’ll find more info in this post.

Lync Phone Edition Update – April 2017

This update takes Phone Edition to 4.0.7577.4531.
Download the relevant CAB files from here:

Teams Room Systems

This is the Release Notes page for Teams Room Systems.

Yet to Upgrade to SfB?

Check out my step-through and associated notes for the upgrade process from Lync Server 2013:
Upgrading to Skype for Business Server 2015
Flip your Edge to Skype for Business Server 2015

Official Microsoft bits

Utils & Tools


Third-party contributions


Skype for Business Survival Guide

If it’s not on Ståle’s master list here, it doesn’t exist:


Utils, Tools & Scripts



Certificate management

Certificates now warrant a section to themselves!

Blogs & related websites

My own posts

Check the Skype for Business groups in the Categories menu, as well as “PowerShell” for my scripts and “SDK” for my utilities that plug in to the client.

– G.


  1. Can you add a note to the very top of this collection, that this is in fact NOT the so-called official “RESOURCE KIT” that MS releases for their products. Rather its just your private collection of various tools found all over the internet. Would confuse less people :) I thought immediately, that somehow the fact that MSFT released sfb2015 reskit has slipped under my radar, when in reality MSFT did not release (and surely will never do) such reskit for sfb2015 and any future mutations.

  2. Skype RASK is no longer available to download:

    Important Note

    On January 17, 2017, we will be retiring the Rollout and Adoption Success Kit (RASK) resources. We are integrating our adoption resources into our Microsoft FastTrack offerings, while still offering high-quality consumable content for you to leverage with your adoption efforts. In line with this strategy, we have published a new resource for you to use: the Skype for Business Adoption Content Directory. This directory is the one resource where you will find all of the ‘APPROVED’ Skype for Business adoption content we offer.

    Download the Skype for Business Adoption Content Directory today: http://aka.ms/sfbrolloutkit

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