To get the latest ViewCommander-NVR update, run your current version of ViewCommander-NVR and:
select "Options->About" and click "Check for Updates"
If a new update is available, a web browser will open with a download to the latest version.
If you do not have a current version installed, go to the link that was provided to you when you purchased the software. If you do not have this, please fill out the support form with your product license number (on USB dongle) and we will email you the link to your specific download page for your product.