Check back often as we are actively adding to our FAQs.

If after reading our FAQs you should have any questions please contact us and we will be happy to answer them.

Minor or patch version updates

Each of our software products has an SKU. For example:


This is the SKU for our ARMS software, 'major version' 1. It's 'minor version' is 0 and it's 'patch version' is 6.

From time to time we may issue new versions of software.

A new version that changes the 'patch version' or 'minor version' is provided free of charge to those with active subscriptions to the same 'major version'.

A new version that changes the 'major version' is a chargeable upgrade.

Where may I read your EULA?

You may read our EULA at duwatech.com/eula.

How to I update my copy of ARMS?

When an update becomes available, you will receive an e-mail from us with a download link. Simply download the installer package and run ArmsSetup.exe. The previous version of ARMS will be overwritten.

Please ensure that ARMS is not running on your computer when installing the update.

Mandatory updates will be available every 56 days to ensure that your airspace data is always current.