Some tools developed using Borland (TM) products require additional libraries. These libraries have the "BPL" extension file. If when trying to run a Zonums tool, a message asking for a BPL file appears, just download the file from the following list and copy it to the same folder as the application.
If you are using more than one Zonums tool, I will recommend you to copy the bpl files to the Windows/system32 folder. This way you don't have to copy them to every Zonums application folder.