On this occasion it was necessary to reinstall the scenery itself in order to get it to load properly in the sim. This has been the case on many occasions. I think my point is that I don't understand why, once a scenery is installed, should it be necessary to regularly reinstall it (or Addon manager, or both), in order to use it.
I thought I already explained this: it's NOT necessary to reinstall the scenery regularly! You THINK it is, but that's just because the installer is probably restoring such wrong compatibility settings for the sim, which something else has wrongly set, or that Window itself was tricked into setting them, because of some other addons.
Sometimes, Windows changes some compatibility settings in the registry, simply because an app has crashed in a certain way.
Note that, our Live Updater also resets the same settings so, it might not be required to reinstall the scenery, and just running the Live Updater might fix some problems as well, without reinstalling.
And of course, the usual suggestion of excluding the Addon Manager folder from scanning in the antivirus settings, is always valid, since another possible reason for this, is your antivirus removing some of our files, because it mistakenly assumed it was dangerous, which is obviously a false positive caused by an antivirus bug, because all our software is digitally signed with a specific standard signature (in addition to our own), which is supposed to help the antivirus NOT to catch false positive, yet sometimes they still do, which is why it's best to exclude the folder from scanning.
I have scenery from other developers which, once installed, works perfectly without intervention. But this is because their developer does not use an intermediary licence checking module within the sim. They do their licence checking when the product is installed, and then that is it. As far as I can see this system works perfectly well for them, why not for FSDreamteam?
The licensing system doesn't have anything to do with this. It's just that our sceneries require a *software* to run, and NOT just because of licensing requirements, but because the software does a lot of things that cannot normally be made, explained here:
http://www.fsdreamteam.com/forum/index.php/topic,16776.msg118919.html#msg118919and it would still be required, even if we used NO licensing system at all.
The licensing system is NOT what makes the software at risk of not running, it's just that, as any other Windows software out there, it can be affected by misconfigurations and OS issues, and the fact it's not a "stand-alone" software, but it must run in an environment where several other software will run at the same time (other addon modules and airplane gauges), makes it easier to suffer from conflicts.
So, it's exactly like a 3rd party airplane or utility that requires FSUIPC: if you have any kind of problems with it, all the software depending on it will stop working.