If the update menu item doesn't work, it is likely because security software on your computer is blocking the ToolBook application from communicating with our web server. You can probably fix this by making sure that ToolBook as well as the JSPowerPac.exe have access through the firewall.
If you want to manually download and install, then just download the trial version of the PowerPac from our website at:
https://pgsoftwaretools.com?nav=PowerPacThen click on
Download and try it for FREE for 21 days.Unzip and install. The trial version will install as registered if it detects that your current version was licensed and registered.
Let me know if you need further assistance. A considerable number of changes, new functions and other enhancements have occurred since your v15.017.1 version.
ENJOY!