I am running Windows 7 64 bit. I had an issue with the Launchbox installer not finishing properly. It would install the Launchbox files and move on to DirectX.
Then It just vanished after a few moments of no progress on Direct X install. When I try to run what was in the Launchbox folder, both Launchbox and Big Box 'have stopped working' immediately.
I checked my DirectX with dxdiag and there were no errors mentioned.
I didn't see a way to test dotnet, so I just downloaded the full 4.8 version of dotnet framework and installed it.
I re-ran the Launchbox installer and this time it finished properly. The programs now run !
Just letting others know that checking the dotnet framework is a valid trouble-shooting step !