headus software is unlocked/enabled by means of a license key; this is a string of hex numbers or letters that is generated by your supplier and is unique to each customer. When the software is run it'll check that the license key is valid before proceeding any further.

Here's an older license key, with an explanation of the various fields:

05 26 d8 9a ... b7 57 c8 81 # uvlayoutv1 5b83f8dd   050520  1832
<- 17 or 21 hex numbers ->    software   ether or   expiry  our ref
                              unlocked   dongle id  YYMMDD  number

More recent license keys look like this :

# uvlayoutv2 sysid=5b83f8dd expire=never
HE7Q 2L4X T9E4 6KA8 JEYA KG43 P6LT ETMT # 7423

There are a number of different license types:

Professional Floating licenses are locked to a server on a local area network, but from there can float to any appropriately configured workstation on that network. These sorts of licenses are suitable for larger companies where a number of people want to share one or more licenses. Floating licenses will only unlock software on a laptop when its connected to the company LAN; take that laptop home or traveling, and you won't be able to run the software. A separate guide is provided for the installation and management of Floating licenses on Windows and Linux servers.

Professional Ether licenses are locked to an Ethernet address, also known as a Media Access Control or MAC address, which is a unique number programmed onto each and every network card or chip manufactured today. Most modern PCs come with a network card, and so its ethernet address can be used to unlock software, even if that network card isn't actually being used. Because Ether licenses are locked to hardware inside to your PC, they can't be moved around to other systems. Despite this restriction though, Ether licenses have the advantage over Dongles in that there's no extra hardware that you need to worry about or keep track of.

Hobbyist / Student licenses aren't locked to a specific piece of hardware, so allow a single user to freely run their copy of UVLayout on a number of different systems. Because of the lack of copy protection though, software enabled with these licenses has limited functionality.

Demo licenses also aren't locked to a specific piece of hardware, and they are pre-enabled, so you can just install the software and you're ready to go; you will not need to follow the licensing process shown below.

Running the licensing GUI

Windows - Double click on the headus UVLayout desktop icon to run the licensing GUI.

Linux - Run "headus" from the command line to run the licensing GUI.

Installing a License Key

When you receive your license string, you can add it to the keys file by clicking on Edit. Type or cut'n'paste the license into the file editing window, then save the file. Click Refresh and check you have a green "permanent" or number of "days" next to "UVLayout"; the number of days is the amount of time left on a temporary license. As a final check, click on the Test button; this will run UVLayout with a simple torus mesh is loaded.