Script to force update Skype for Business Clients Global Address List

updateSfBGAL.ps1

<# 
.SYNOPSIS 
Script to force update Skype for Business Clients Global Address List Written by Michael Mardahl (iphase.dk) 
(Provided AS-IS! I will not be held liable for any negative consequences)

.DESCRIPTION 
This script will shutdown the SfB client, update the registry and delete the GAL DB, then start the client again. It should be run in the users context as it does user specific things.

.EXAMPLE 
Just run the script without parameters

.NOTES 
user will need to have access to write to the registry key specified in this script. 
#>

Write-Output "Stopping SfB client" Get-Process -ProcessName lync | Stop-Process

Write-Output "Identifying Office version (2013 or 2016)" switch (Test-Path "$($env:userprofile)\AppData\Local\Microsoft\Office\16.0") { $true {$ver = "16"} $false {$ver = "15"} }

Write-Output "Adding required key to registry" reg add HKLM\Software\Policies\Microsoft\Office$ver.0\Lync /v GalDownloadInitialDelay /t REG_DWORD /d 0 /f

Write-Output "Deleting SfB Client GAL db files"

#Remember to change the sipdomain.com text on these two lines, they should be your real domain (if in doubt, just look in that folder on your own client and see).
#You could also script a solution that fetches the users SIP address directly from Active Directory. I chose the easy way here...

Remove-Item "$($env:userprofile)\AppData\Local\Microsoft\Office$ver.0\Lync\sip$($env:username)@sipdomain.com\GalContacts.db" -force Remove-Item "$($env:userprofile)\AppData\Local\Microsoft\Office$ver.0\Lync\sip$($env:username)@sipdomain.com\GalContacts.db.idx" -force

Write-Output "Starting SfB client again" Start "C:\Program Files (x86)\Microsoft Office\root\Office$ver\lync.exe"