Note: This documentation gets updated only when necessary, as the product is in sustained mode. For product updates see the Release Notes.

Software Requirements and Prerequisites by component

This topic describes the minimum software requirements per K2 product and per product component/machine role in a K2 topology. For clarity, this topic is divided into Software Requirements by Component (components that are installed on servers in a K2 topology) and Software Requirements by Component (components that are installed on users' machines in a K2 topology).

For updated and additional information on integration and compatibility of K2 with other technologies, please refer to the Product Compatibility, Integration and Support Matrix.

IPv4 is required on all machines running K2 components (e.g. K2 Server, K2 websites, K2 client components). Although IPv6 can exist on these machines in addition to IPv4, IPv6 is not used by K2, therefore IPv4 is required. K2 will not operate as expected on environments where IPv6 is the only IP configuration
All machines running K2 components (for example, K2 Server and K2 websites) require TLS 1.2. Although TLS 1.3 can exist on these machines in addition to TLS 1.2, K2 does not use TLS 1.3.
K2 will not operate as expected in environments where TLS 1.3 is the only configuration enabled.

Server Components

The table below lists the software/feature prerequisites or minimum requirements for server components (for example the K2 blackpearl Server and K2 sites components) in a K2 topology.

K2 product	K2 Component	Required/Optional	Prerequisite / Requirement
K2 blackpearl	K2 blackpearl Server (K2 application server)	Required	Supported version of Microsoft Windows Server
			Microsoft Message Queuing (MSMQ) Services with Directory Service Integration
			User Manager Read More... The default User Manager is Active Directory (AD), but a custom user manager may be configured for use with K2 blackpearl.
			Distributed Transaction Controller (DTC)
			Supported version of Microsoft .NET Framework
			Windows Identity Foundation Redistributable Read More... For more information, see http://support.microsoft.com/kb/974405.
			Supported version of Windows PowerShell
			Supported Browser
			For the K2 server to send email, an SMTP server supporting: Internet Simple Mail Transfer Protocal/Post Office Protocal 3 (SMTP/POP3) Internet Message Access Protocal 4 (IMAP4)
		Optional	Supported version of Oracle. 64-bit Oracle Data Access Components Read More... If the ODAC is not installed prior to registering a new service instance, an error is generated saying the assembly cannot be loaded because it is either not present or one of its dependencies is missing. Download
			Supported version of Dynamics CRM Read More... If you want to integrate with CRM 2013 or 2015, the K2 Setup Manager will automatically install the required SDK and redistributables.
			Windows Support Tools Read More... Windows Support Tools is a prerequisite if the installer is to automatically set the SPNs during the installation of K2 blackpearl. For more information see http://go.microsoft.com/fwlink/?LinkId=62270
			Microsoft Exchange If Microsoft Exchange 2010 or Microsoft Exchange 2013 is being used, Windows Powershell 3.0 or later and WinRM (Windows Remote Management) are required, both of which are part of the Windows Management Framework: https://www.microsoft.com/en-us/download/details.aspx?id=34595 For more information see Exchange Intergration Preperation
K2 blackpearl	K2 database	Required	Supported version of Microsoft SQL Server
			Distributed Transaction Coordinator (DTC).
			Supported version of Microsoft .NET Framework
K2 blackpearl	K2 for SharePoint (2013/2016)	Required	Supported version of Microsoft SharePoint (Integration with SharePoint Online or SharePoint 2013 and later requires the K2 for SharePoint component. ) There may be additional requirements before installing or using K2 for SharePoint for SharePoint Online or 2013 and later. See the Preparing SharePoint On-Premises topic.
			See Preparing SharePoint On-Premises for more information on preparing your SharePoint environment.
			Corresponding version of K2 blackpearl
			Corresponding version of K2 smartforms
			Supported version of Windows PowerShell
			Supported browser
K2 blackpearl	K2 for SharePoint (2010)	Required	Supported version of Microsoft SharePoint 2010 Supported browser SharePoint Foundation 2010 Client Side Object Model Redistributable for use with the SharePoint Content and SharePoint Management service brokers Microsoft Report Viewer Redistributable 2008 SP1 The User Profile Service. For information see the section of the same name in the Preparing SharePoint On-Premises topic. Microsoft Silverlight 4.0.50917.0 or higher is required by the web-based K2 Workflow design tool, as well as for rendering the K2 View Flow Report. See the KB article: Known Issue: Silverlight does not load when using the Google Chrome browser for notes on compatibility between Silverlight and other web browsers.
K2 blackpearl	K2 Workspace (includes K2 web services and K2 Workspace web site)	Required	Supported version of Microsoft Windows Server
			Internet Information Services (IIS) 8
			ASP.NET
			Supported version of Microsoft .NET Framework
			Windows Authentication Role Services
			Supported version of Internet Explorer
			Microsoft Silverlight 4.0.50917.0 or higher is required by the web-based K2 Workflow design tool, as well as for rendering the K2 View Flow Report. See the KB article: Known Issue: Silverlight does not load when using the Google Chrome browser for notes on compatibility between Silverlight and other web browsers.
K2 blackpearl	K2 for Reporting Services	Required	Supported version of Microsoft Windows Server
			Internet Information Services (IIS)
			ASP.NET
			Windows Authentication Role Services
			Microsoft SQL Server Reporting Services 2012
			Microsoft .NET Framework 3.5 SP1 Redistributable Package Download
			Supported Browser
K2 smartforms	K2 Designer Site	Required	Supported version of Microsoft Windows Server
			Internet Information Services (IIS) 8
			Supported version of Microsoft .NET Framework. The Application Pool must run on .NET Framework v4.0.30319
			The corresponding version of K2 blackpearl must be installed on a server that is reachable from this machine. For improved performance it is recommended to install the K2 Designer Site on the same physical machine as the K2 application server, see Performance Considerations.
K2 smartforms	K2 smartforms Runtime Site	Required	Supported version of Microsoft Windows Server
			Internet Information Services (IIS) 8
			Supported version of Microsoft .NET Framework. The Application Pool must run on .NET Framework v4.0.30319
			The corresponding version of K2 blackpearl must be installed on a server that is reachable from this machine. For improved performance it is recommended to install the K2 Runtime Site on the same physical machine as the K2 application server, see Performance Considerations.

Client Components

The table below lists the software/feature prerequisites or minimum requirements for client machines (for example the K2 client design tools, and end-user machines that access K2 artifacts) in a K2 topology.

K2 product	K2 Component	Required/Optional	Prerequisite / Requirement
K2 blackpearl	K2 for Visual Studio	Required	Supported version of Windows
			Supported version of Microsoft Visual Studio
			Supported version of Microsoft .NET Framework
K2 blackpearl	K2 Studio	Required	Supported version of Windows
K2 blackpearl	K2 Studio	Required	Supported version of Microsoft .NET Framework
K2 blackpearl	Machines that access K2 Reports Machines that access K2 Worklist	Optional	Microsoft Silverlight 4.0.50917.0 or higher is required by the web-based K2 Workflow design tool, as well as for rendering the K2 View Flow Report. See the KB article: Known Issue: Silverlight does not load when using the Google Chrome browser for notes on compatibility between Silverlight and other web browsers.
K2 smartforms	K2 smartforms Process Wizards	Required	Corresponding version of K2 blackpearl client design tools (K2 for Visual Studio or K2 Studio). (This installs the SmartForms workflow wizards in the thick-client design tools, e.g. K2 Studio and K2 for Visual Studio).
K2 smartforms	Machines that access K2 Designer Machines that access K2 SmartForms	Required	Supported Browser (JavaScript must be enabled)
K2 smartforms		Optional	Microsoft Silverlight 4.0.50917.0 or higher is required by the web-based K2 Workflow design tool, as well as for rendering the K2 View Flow Report. See the KB article: Known Issue: Silverlight does not load when using the Google Chrome browser for notes on compatibility between Silverlight and other web browsers.