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Third party software

Java Runtime Environment (JRE)

The KX Platform runs on the following supported JRE:

  • 1.8
  • 11.0


  • 1.0.2
  • 1.1 ( since kdb+ 4.0 2020.03.17 )

Visual C++ redistributable

  • 2010
  • 2013
  • 2015


To Unzip the Windows bundle you must use the 7-Zip Software.

7-Zip can be downloaded from the website

Host configuration

KDB licenses (k4.lic) are tied to the hostname of a machine and specifically the hostname in FQDN (.) format. When run on a machine which is incorrectly configured you will get a host error when running the q binary.

For more information on kdb+ license errors see

In order for kdb+ to run, the hostname in the license file must match the hostname of the box.