Install last version of wine from this guide: https://tecadmin.net/install-wine-on-ubuntu/
Install also winetricks using:
$ sudo apt install winetricks
Delete all previous dotnet versions that you have installed and run:
$ winetricks
Running winetricks, Wine Mono Installer will appear, just wait and install. This will solve the following error:
0009:err:mscoree:CLRRuntimeInfo_GetRuntimeHost Wine Mono is not installed
Run:
winetricks dotnet461
Here you go, now you can run WDBX.exe
If Wine Mono Installer does not appear or you get some errors, try to clean everything about wine and winetricks using:
$ winetricks
Select the default wineprefix
Install a Windows DLL or component
- last option
Delete ALL DATA AND APPLICATIONS INSIDE THIS WINEPREFIX
<-- be careful, this will delete everything inside your ~/.wine directory. - follow again the steps
Tested with wine 4.0.2, Ubuntu 18.04.3 LTS and with WDBX 1.1.9a