_In general below mentioned are the prerequisites and a brief explanation is given in the below article:

.net 3.5 application server role remote desktop services role Web server(IIS along with selected roles) microsoft windows installer group policy management console microsoft visual C++ binaries

System Requirements for XenApp 6 for Windows Server 2008 R2

System requirements for XenApp features and related technologies are described in their respective System Requirements documentation; that includes plug-ins and agents, Web Interface, Single Sign-on, Service Monitoring, EdgeSight, SmartAuditor, Application Session Recording, Provisioning Services, and Power and Capacity Management.Citrix recommends using the latest Citrix License Server.To ensure availability of the features and functionality of XenApp for Windows Server 2008 R2 to your users, install the most recent version of any plug-ins you use.

Important: Do not join servers running XenApp 6 for Windows Server 2008 R2 to a deployment with servers running previous versions of XenApp.

Deploying Prerequisites

During a wizard-based installation, the XenApp Server Role Manager (using the Server Role Installer), automatically installs prerequisites for the selected roles.

For command-line installations, deploy the prerequisites before initiating XenApp role installation. Citrix recommends you deploy prerequisites (such as IIS role services) using the Microsoft ServerManagerCmd.exe command or Powershell, which Microsoft provides for Windows operating system roles.

XenApp for Windows Server 2008 R2

Supported operating system: Microsoft Windows Server 2008 R2, except the Web Server edition and the core installation option.

Most servers running Microsoft Windows Server 2008 R2 meet the hardware requirements for XenApp with ample processing power to host user sessions accessing the published resources. However, additional research may be needed to determine if current hardware meets the requirements.

Technology

Requirement

CPU

• 64-bit architecture with Intel Pentium
• Xeon family with Intel Extended Memory 64 Technology
• AMD Opteron family
• AMD Athlon 64 family
• Compatible processor

Memory

512MB RAM (minimum)

Disk space

Up to 3.2GB

The XenApp Server Role Manager deploys the following software (except as noted), if it is not already installed:

• .NET Framework 3.5 SP1 (this is a prerequisite for the XenApp Server Role Manager; it is deployed automatically when you choose to add the XenApp server role from the Autorun menu)
• Windows Server Remote Desktop Services role (if you do not have this prerequisite installed, the Server Role Manager installs it and enables the RDP client connection option; you will be asked to restart the server and resume the installation when you log on again)
• Windows Application Server role
• Microsoft Visual C++ 2005 SP1 Redistributable (x64)
• Microsoft Visual C++ 2008 SP1 Redistributable (x64)

If the server already has the following IIS role services installed, the Citrix XML Service IIS Integration component is selected by default in the wizard-based XenApp installation, and the Citrix XML Service and IIS share a port (default = 80). If the IIS role services are not installed, the Citrix XML Service IIS Integration component is not selected by default in the wizard-based installation. In this case, if you select the checkbox, the Server Role Manager installs the following IIS role services. (If you do not install these services, the Citrix XML Service defaults to standalone mode with its own port settings, which you can configure using the XenApp Server Configuration Tool.)

• Web Server (IIS) > Common HTTP Features > Default Document (selecting this role service automatically selects Web Server (IIS) > Management Tools > Management Console, which is not required or checked for XenApp installation)
• Web Server (IIS) > Application Development > ASP.NET (selecting this role service automatically selects Web Server (IIS) > Application Development > .NET Extensibility; although not checked for XenApp installation, .NET Extensibility is required by ASP.NET)
• Web Server (IIS) > Application Development > ISAPI Extensions
• Web Server (IIS) > Application Development > ISAPI Filters
• Web Server (IIS) > Security > Windows Authentication
• Web Server (IIS) > Security > Request Filtering
• Web Server (IIS) > Management Tools > IIS 6 Management Compatibility (which includes IIS 6 Metabase Compatibility, IIS 6 WMI Compatibility, IIS 6 Scripting Tools, and IIS 6 Management Console)

List of roles and features installed after installation:

Name —- Application-Server AS-NET-Framework Remote-Desktop-Services RDS-RD-Server Web-Server Web-WebServer Web-Common-Http Web-Static-Content Web-Default-Doc Web-Http-Errors Web-Http-Redirect Web-App-Dev Web-Asp-Net Web-Net-Ext Web-ISAPI-Ext Web-ISAPI-Filter Web-Health Web-Http-Logging Web-Security Web-Windows-Auth Web-Client-Auth Web-Filtering Web-Mgmt-Tools Web-Mgmt-Console Web-Scripting-Tools Web-Mgmt-Compat Web-Metabase Web-WMI Web-Lgcy-Scripting Web-Lgcy-Mgmt-Console NET-Framework NET-Framework-Core Desktop-Experience GPMC Ink-Handwriting IH-Ink-Support RSAT RSAT-Role-Tools RSAT-RDS RSAT-RDS-RemoteApp RSAT-Web-Server PowerShell-ISE WAS WAS-Process-Model WAS-NET-Environment WAS-Config-APIs XPS-Viewer

If you plan to use Philips SpeechMike devices with XenApp, you may need to install drivers on the servers hosting sessions that record audio, before installing XenApp. For more information, see Citrix information on the Philips web site.

If installation of a required Windows role or other software requires a restart (reboot), restart the server before starting the XenApp server role installation.

Important: Do not install XenApp on a domain controller. Citrix does not support installing XenApp on a domain controller.

XenApp Management XenApp Management includes the Delivery Services Console. By default, the console is installed on the same server where you install the XenApp server role; however, you can install and run the console on a separate computer. To install the Delivery Services Console on a workstation, from the XenApp Autorun menu, select Manually Install Components > Common Components > Management Consoles.

Supported operating systems:

• Windows Server 2008 R2
• Windows Server 2008
• Windows Server 2003 (Standard, Datacenter, and Enterprise editions)
  • Windows Server 2003, 32-bit edition, with Service Pack 2
  • Windows Server 2003, 64-bit edition
  • Windows Server 2003 R2, 32-bit edition
• Windows XP Professional
• Windows Vista (Business, Enterprise, and Ultimate editions), 32-bit and 64-bit editions, with Service Pack 1
• Windows 7, 32-bit and 64-bit editions

Requirements:

• Disk space: 25MB
• Microsoft Management Console (MMC):
  • For Windows Vista, Windows 7, and Windows Server 2008 R2: MMC 3.0 (installed by default)
  • For other supported Windows operating systems: MMC 2.0 or 3.0

The XenApp Server Role Manager deploys the following software, if it is not already installed:

• Microsoft .NET Framework 3.5 SP1
• Microsoft Windows Installer (MSI) 3.0
• Microsoft Windows Group Policy Management Console
• Microsoft Visual C++ 2005 SP1 Redistributable (x64)
• Microsoft Visual C++ 2008 SP1 Redistributable (x64)
• Microsoft Visual C++ 2008 SP1 Redistributable
• Microsoft Visual C++ 2005 SP1 Redistributable
• Microsoft Primary Interoperability Assemblies 2005

If you install the Delivery Services Console on a computer that previously contained the Microsoft Group Policy Management Console (GPMC) and an earlier version of the Delivery Services Console, you may also need to uninstall and reinstall the Citrix XenApp Group Policy Management Experience (x64) program in order to use the GPMC to configure Citrix policies.

Data Store Databases

The following databases are supported for the data store:

• Microsoft SQL Server 2008 Express (can be deployed for you by the XenApp Server Configuration Tool when creating a new XenApp farm)
• Microsoft SQL Server 2005
• Microsoft SQL Server 2008
• Oracle 11g R2