LAC includes a command line utility, lacutil, that lets you activate a license from a command line. You can retrieve HostIDs and send them as a part of the activation request, as well as specify proxy information.

Command usage

The lacutil command usage is as follows. Optional parameters are enclosed in square brackets ( [ ] ). Variables are shown in italic text.





lacutil -hostid

Displays HostID values of your computer system.


-act_key <activation_key>
[-output <output_file>]
[-hostid <type=value,...>]
[-proxyhost <host> -proxyport <port>]
[-proxyuser <username> -proxypassword <password>]

Activate a license from License Activation Center.

The -hostid option can be used to explicitly specify the HostIDs. If no HostIDs are specified, LAC will try to automatically use the proper HostID from the current machine if a HostID is required. Additionally, proxy information can be specified for activation.


  • To print out a HostID list for the current machine:

lacutil.exe -hostid

  • To activate a license by specifying the activation key, with the HostID selected automatically from the current machine:

lacutil.exe -activate -act_key X34UT-0B2VE-1LAT9-Y3S45

  • To activate a license by explicitly specifying HostIDs (in this example, an Ethernet and Harddisk HostID):

lacutil.exe -activate -act_key X34UT-0B2VE-1LAT9-Y3S45 -hostid ETHERNET=112233445566,HARDDISK=AABBCCDDEEFFGGHH


  File Modified
ZIP Archive Oct 30, 2019 by Tomasz Ryba
ZIP Archive Oct 30, 2019 by Tomasz Ryba
ZIP Archive Oct 30, 2019 by Tomasz Ryba
ZIP Archive Oct 30, 2019 by Tomasz Ryba
ZIP Archive Oct 30, 2019 by Tomasz Ryba

Lacutil history

lacutil revision

Release Date




Initial release; considered production ready. End-user functionality provided. 



Updated C Library and changed default output filename to contain activation key and date.

32013-03-18LAC end user API was updated to the stable version 2 and LM-X was updated to version 4.4.5.
42013-04-09Stability improvements.
52019-06-19LM-X was updated to version 4.9.12.
62019-07-26LM-X was updated to version 4.9.14.
72019-10-30LM-X was updated to version 4.9.16.
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