LDView - setup thumbnail view in Windows Explorer

[Jetro de Château]

I uninstalled all my LDraw related programs and I'm slowly building up my setup again. This time round I am not using the All-In-One-Installer and I have not been able to figure out how to enable LDView thumbnail generation for Windows Explorer. 

I would like .ldr .mpd and possibly even .dat files to automatically become thumbnail images of the corresponding digital elements in Windows Explorer. How do I enable this manually?

[Travis Cobbs]

I uninstalled all my LDraw related programs and I'm slowly building up my setup again. This time round I am not using the All-In-One-Installer and I have not been able to figure out how to enable LDView thumbnail generation for Windows Explorer. 

I would like .ldr .mpd and possibly even .dat files to automatically become thumbnail images of the corresponding digital elements in Windows Explorer. How do I enable this manually?

Normally you wouldn't do this manually, but instead make sure the option for that is checked when you install LDView using its installer. If you know what you are doing, you can run regsvr32 on the appropriate thumbnail DLL(s) in the LDView directory. This has to be done from an administrative command prompt, and you have to make sure to get the DLL(s) that is/are appropriate for your operating system (32-bit or 64-bit). If you have 64-bit Windows, you must register both LDViewThumbs.dll and LDViewThumbs64.dll (even if you're using the 32-bit version of LDView itself). If you have 32-bit Windows, you must register LDViewThumbs.dll.

Note: if you only register the 64-bit version on 64-bit Windows, thumbnails will work in all 64-bit programs (including Windows Explorer), but they won't work in standard system open and save dialogs in 32-bit programs. That's why both need to be registered on 64-bit Windows.

[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!