Licensing
ultra_outliner is free software. Starting from v.0.9.12 it requires personalized license, that you can request from license server absolutely for free.
In order to request it, just start ultra_outliner and follow instructions. After requesting license will come to your mail and you need to copy it into dialog window. In case you have any problems please contact support.
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Restrictions
There are no restriction on licenses you have. You can request as many licenses as you want.
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Personalization
License is bind to hardware you use it on. It uses unique hash of MAC address, HDD and system IDs as a fingerpring, so in case you change your hardware - you might need to renew your license. License is signed with RSA and can't be modified once issued by license server.
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Usage
License is used in order to assign authorship of document changes. It is important step for multi-user document editing. Secondary it helps us to understand the amount of real users.