The following table lists all required prerequisites for the available Verba server roles:

Verba Server Role	Prerequisite	Mandatory / Optional	Download / Notes	Included in the installer package
Application Server / Media Repository and Recording Server	Java SE 11 Runtime Environment (Windows x64)	Mandatory	Both Oracle and OpenJDK Java 11 runtimes are supported. OpenJDK JRE 11 download: https://adoptopenjdk.net/releases.html?variant=openjdk11&jvmVariant=hotspot#x64_win	Yes (OpenJDK)
	Visual Studio C++ Runtime 2015 and 2017 (x64)	Mandatory	https://aka.ms/vs/16/release/VC_redist.x64.exe If the installer fails you need to download and install the following Windows Update packages: KB2919355 KB2999226	Yes
	Microsoft .Net Framework 4.6.2	Mandatory	https://www.microsoft.com/en-us/download/details.aspx?id=53344&desc=dotnet462	Yes
	Media Foundation	Optional	Required for screen capture multiplexing and media transcoding for the following services: Verba Storage Management Service Verba Screen Capture Multiplexer Service Verba Import Service Verba Speech Analytics Service Verba Media Streamer and Content Server Service Verba Media Utility Service	No
	WinPcap Service	Optional	Required for Skype for Business / Lync recording and network port mirroring based recording http://www.winpcap.org/install/bin/WinPcap_4_1_3.exe	Yes
	Microsoft ODBC Driver 17 (x64)	Optional	Required for advanced SQL Server features: always-on, failover partner https://www.microsoft.com/en-us/download/details.aspx?id=56567	Yes
	Skype for Business/Lync Management Shell	Optional	Required for Skype for Business / Lync Archive import https://technet.microsoft.com/en-us/library/dn933921.aspx	No
Application Server / Media Repository	Java SE 11 Runtime Environment (Windows x64)	Mandatory	Both Oracle and OpenJDK Java 11 runtimes are supported. OpenJDK JRE 11 download: https://adoptopenjdk.net/releases.html?variant=openjdk11&jvmVariant=hotspot#x64_wi	Yes (OpenJDK)
	Visual Studio C++ Runtime 2015 and 2017 (x64)	Mandatory	https://aka.ms/vs/16/release/VC_redist.x64.exe If the installer fails you need to download and install the following Windows Update packages: KB2919355 KB2999226	Yes
	Microsoft .Net Framework 4.6.2	Mandatory	https://www.microsoft.com/en-us/download/details.aspx?id=53344&desc=dotnet462	Yes
	Media Foundation	Optional	Required for screen capture multiplexing and media transcoding for the following services: Verba Storage Management Service Verba Screen Capture Multiplexer Service Verba Import Service Verba Speech Analytics Service Verba Media Streamer and Content Server Service Verba Media Utility Service	No
	Microsoft ODBC Driver 17 (x64)	Optional	Required for advanced SQL Server features: always-on, failover partner https://www.microsoft.com/en-us/download/details.aspx?id=56567	Yes
	Skype for Business/Lync Management Shell	Optional	Required for Skype for Business / Lync Archive import https://technet.microsoft.com/en-us/library/dn933921.aspx	No
Recording Server	Java SE 11 Runtime Environment (Windows x64)	Mandatory	Both Oracle and OpenJDK Java 11 runtimes are supported. OpenJDK JRE 11 download: https://adoptopenjdk.net/releases.html?variant=openjdk11&jvmVariant=hotspot#x64_wi	Yes (OpenJDK)
	Visual Studio C++ Runtime 2015 and 2017 (x64)	Mandatory	https://aka.ms/vs/16/release/VC_redist.x64.exe If the installer fails you need to download and install the following Windows Update packages: KB2919355 KB2999226	Yes
	Microsoft .Net Framework 4.6.2	Mandatory	https://www.microsoft.com/en-us/download/details.aspx?id=53344&desc=dotnet462	Yes
	WinPcap Service	Optional	Required for Skype for Business / Lync recording and network port mirroring based recording http://www.winpcap.org/install/bin/WinPcap_4_1_3.exe	Yes
	Microsoft ODBC Driver 17 (x64)	Optional	Required for advanced SQL Server features: always-on, failover partner https://www.microsoft.com/en-us/download/details.aspx?id=56567	Yes
	Media Foundation	Optional	Required for screen capture multiplexing and media transcoding for the following services: Verba Import Service	No
Lync Filter	Microsoft .Net Framework 4.6.2	Mandatory	https://www.microsoft.com/en-us/download/details.aspx?id=53344&desc=dotnet462	Yes (in the main package)
Verba Media Collector and Lync Filter	Microsoft .Net Framework 4.6.2	Mandatory	https://www.microsoft.com/en-us/download/details.aspx?id=53344&desc=dotnet462	Yes (in the main package)
Verba Media Collector and Lync Filter	WinPcap Service	Mandatory	Required for Lync recording and network port mirroring based recording http://www.winpcap.org/install/bin/WinPcap_4_1_3.exe	Yes (in the main package)
Verba Media Collector and Proxy Server	Microsoft .Net Framework 4.6.2	Mandatory	https://www.microsoft.com/en-us/download/details.aspx?id=53344&desc=dotnet462	Yes (in the main package)
Verba Media Collector and Proxy Server	WinPcap Service	Mandatory	Required for Skype for Business / Lync recording and network port mirroring based recording http://www.winpcap.org/install/bin/WinPcap_4_1_3.exe	Yes (in the main package)
Verba Announcement Server	Microsoft .Net Framework 4.6.2	Mandatory	https://www.microsoft.com/en-us/download/details.aspx?id=53344&desc=dotnet462	Yes (in the main package)
Verba Announcement Server	Unified Communications Managed API 4.0 Runtime	Mandatory	https://www.microsoft.com/en-us/download/details.aspx?id=34992	No
Verba Speech Analytics Server	Microsoft .Net Framework 4.6.2	Mandatory	https://www.microsoft.com/en-us/download/details.aspx?id=53344&desc=dotnet462	Yes (in the main package)
	Microsoft ODBC Driver 17 (x64)	Optional	Required for advanced SQL Server features: always-on, failover partner https://www.microsoft.com/en-us/download/details.aspx?id=56567	No
	Media Foundation	Optional	Required for media transcoding for the following services: Verba Speech Analytics Service	No
	Visual Studio C++ Runtime 2015 and 2017 (x64)	Mandatory	https://aka.ms/vs/16/release/VC_redist.x64.exe If the installer fails you need to download and install the following Windows Update packages: KB2919355 KB2999226	Yes (in the main package)
Verba Desktop Recorder	Visual Studio C++ Runtime 2015 and 2017 (x64)	Mandatory	https://aka.ms/vs/16/release/VC_redist.x64.exe If the installer fails you need to download and install the following Windows Update packages: KB2919355 KB2999226	Yes (in the main package)
Verba Desktop Recorder	Microsoft ODBC Driver 17 (x64)	Optional	Required for advanced SQL Server features: always-on, failover partner https://www.microsoft.com/en-us/download/details.aspx?id=56567	Yes (in the main package)

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