DB Browser for SQLite 3.11.2

(repost, maybe I put it in the wrong place previously?)

I can't get this to run, there's a small kick in the CPU usage according to Task Manager but then nothing.

I have two previous versions of the same thing, all located as separate directories under C:\Portable Apps\SQL Utilities but I've also tried it from other locations (and downloaded it twice, just in case).

The other two work fine, and produce entries in Computer\HKEY_CURRENT_USER\Software\sqlitebrowser\sqlitebrowser, but the new one doesn't get that far.

Can anyone suggest what I should try next please