BullCharts 5.1.15 for Windows 10 for an existing installation of BullCharts (you must have BullCharts already installed as the upgrade has no database.)

https://download.bullcharts.com.au/Download/BC510/BCUpgradeV5.1WithASXDB.exe

BullCharts 5 Reset for 4k Monitors if the Toolbar icons are too large

If after installation of BullCharts 5 the icons are too large try resetting.

https://kb.bullcharts.com.au/knowledge-base/bullcharts-version-5-0-icons-too-large/