Product Documentation

System requirements for Citrix Licensing

Mar 25, 2015

Requirements for Licensing for Windows

Citrix Licensing is compatible with the same hardware required to support the compatible operating systems. No additional hardware is required.

Note: The license server does not support multi-homing (two network cards plugged into distinct networks).

The License Administration Console manages the license server on the computer on which it is installed. It cannot manage remote license servers. The Simple License Service can install licenses only on the license server where it is installed.

Operating Systems

You can install the license server on servers running the following Microsoft operating systems. Citrix recommends that you install the latest Microsoft Service Pack and updates.

  • Windows Server 2008 Family
  • Windows Server 2008 R2 Family
  • Windows Server 2012 Family
  • Windows Server 2012 R2 Family
  • Windows 7, 32-bit and 64-bit editions
  • Windows 8, 32-bit and 64-bit editions
  • Windows 8.1, 32-bit and 64-bit editions

Disk Space Requirements

  • 55 MB for the licensing components
  • 2 GB for User/Device licensing

Microsoft .NET Framework Requirements

Microsoft .NET Framework 3.5 SP1 or greater is required.


  • Internet Explorer Version 10 and 11
  • Internet Explorer Version 8 and 9 in compatibility mode
  • Mozilla Firefox Version 14.0 and 15.0
  • Chrome Version 14.0 and 15.0
  • Safari Version 5.1

Requirements for installing License Server VPX

XenServer must provide adequate virtual computing resources to the License Server VPX as listed in this table.


512 MB. Sufficient for up to 500 Citrix servers and approximately 50,000 licenses, but monitor available memory during operation to determine if you need to add more memory. For larger environments, Citrix recommends allocating more memory.

XenServer version

XenServer 6.1, 6.2 and XenServer 6.5.

Minimum Storage Requirement

8 GB on the default Storage Repository inside the XenServer pool.

Virtual CPU (VCPU)

1 VCPU. For larger environments or those leveraging User/Device licensing, consider adding a second VCPU.


  • Internet Explorer Versions 10.0 for 32-bit and 11.0 for 64-bit
  • Mozilla Firefox Versions 26.0 and 27.0
  • Chrome Versions 31.0 and 32.0
  • Safari Versions 3.0.3 and 5.1.7