Because I purchased a license for CutViewer with CamBam, I have become comfortable with CutViewer, and I rely upon it.
Yesterday, out of the blue, it announced that my 30 day trial had ended, and it ceased to work!
I have migrated my software from XP to Windows 10, and to FOUR different physical platforms since I first purchased my license, so I had to do some searching to find my original license information and instructions. Thank goodness, I found it (still actually on my CAM computer and backups).
A few minutes later, CV was back to working.
But what in HE!! would cause it to suddenly just abandon a decade-old license? There's no reason for the registry to have changed -- I do not allow any upgrades or software updates on that machine -- EVER. It's purely static. It's not even connected (or connectable) to any network unless I manually plug in a USB network adaptor. My philosophy is that if it works properly, don't 'mess with it'. And so far as I can tell, everything else is still working properly. I did a registry scan afterwards, and couldn't find any corruption.
The license.dat file was still there in the system files, and was an exact copy of my old saved copy. All I had to do was go through the registration process again.

Lloyd