Open the portable app, go to the Help or Registration menu, and enter your email and product key.
Look for the "Portable" link (usually a .zip file) under the main download buttons.
To download and use (or the latest stable version) in its portable format with Professional or Enterprise features, follow this guide based on official Bandisoft resources. 1. Download the Portable Zip
Right-click the downloaded BANDIZIP-PORTABLE.ZIP and select "Extract All..." to a folder of your choice (e.g., on a USB drive or a dedicated "Tools" folder).