If you are using Window Defender Antivirus (Windows 10), update it to its latest malware definition in before installing or upgrading to PropView Pathfinder 5.2.5 This release - optimizes the tab order on Pathfinder's Main and Configuration windows (tnx to Mike K5TRI) - can extract callbook information from www.QRZ.com after its recent change in format (tnx to Pete W1RM, Scott N9LJX, Kent N6WT and Rick N2AMG) Notes: 1. Update your firewall and anti-malware applications to consider this new version of Pathfinder to be "safe" Virus total: 69 of 72 engines detected no malware Jotti: 15 of 15 engines detected no malware Microsoft Security Intelligence: no malware 2. If this upgrade doesn't work correctly, see the "After an Upgrade" section of 3. After upgrading, to revert to the previous version of Pathfinder, see Pathfinder 5.2.5 is available via the DXLab Launcher and via 73, Dave, AA6YQ