To obtain and activate a new ABViewer license key, you should use official registration methods provided by CADSoftTools. Unauthorized "keys" found in unofficial articles are often malicious or non-functional. How to Get a New License Key

• Run the installer as Administrator.
• After installation, launch ABViewer. You will see a "License Information" dialog or a red "Unregistered" banner.

ABViewer by CADSoftTools is a "Swiss Army knife" for engineering offices. A valid license key unlocks features like:

Enter your License Key and user information exactly as provided in your purchase email. Click OK to complete the activation. ⚠️ Security Warning