LDView - setup thumbnail view in Windows Explorer

[Jetro de Château]

Thanks. Actually, from your comments I have been able to reconstruct what has happened on my system.
I uninstalled the AIOI, which also deleted LDView. However, a couple of days ago I installed the 64-bit version of LDView so after uninstalling the AIOI version of LDView I still had the other version on my system, but the thumbnail configuration had been deleted.

I have reinstalled LDView 64-bit (without uninstalling it first) and everything works fine now.

Thanks!