These tools are needed for Office365 Hybrid and Skype for Business labs. You could find the official links and latest version at following links
1.Install Microsoft Online Services Sign-in Assistant : (msoidcli_32.msi
https://www.microsoft.com/en-us/download/details.aspx?id=41950
2.Install Windows Azure Active Directory Module for Windows PowerShell:(AdministrationConfig-en.msi)
https://go.microsoft.com/fwlink/p/?linkid=236297
3.Install the latest Azure PowerShell from the PowerShell Gallery using an elevated Windows PowerShell or PowerShell Integrated Scripting Environment (ISE) prompt:
Install-Module AzureRM
4.Remote Desktop Connection Manager : (rdcman.msi)
https://www.microsoft.com/en-gb/download/details.aspx?id=44989
5.DigiCert Certificate Utility for Windows : (DigiCertUtil.exe)
https://www.digicert.com/util/DigiCertUtil.zip
6.Azure Explorer A free storage tool for Microsoft Azure (AzureExplorer.exe)
http://www.red-gate.com/products/azure-development/azure-explorer/download
7.Microsoft Lync Connectivity Analyzer (LyncConnectivityAnalyzer.msi)
https://www.microsoft.com/en-gb/download/details.aspx?id=36535
- Skype debuging tool (snooper)
https://www.microsoft.com/en-us/download/details.aspx?id=47263