Hi Chris, the very first versions of Boxcryptor for Windows some years ago also used Dokan. Our experiences have been really bad and as the user base grew so did the number BSOD reports caused by Dokan (v0.6 back then). We are now using the commercial driver CBFS since 3+ years and are really happy with it. Hint: As development at Dokan has picked up again with Dokany, I don't know anything about its current stability.

Also, it's a terrible Plan B, but it's still a Plan B to keep in mind: Windows still has semi-adequate WebDAV views in Explorer. OneDrive for Business is still WebDAV-based for instance. (I've also seen and used several backup and NAS tools that have relied on WebDAV.)

There's always the ability to use a SAMBA server variant and be a network share. Still a lot of dumb Windows apps that fail on network shares, but most of those are long in the tooth and should be retired anyway (and the tried and true Map Network Drive is still a power user workaround).

It looks like one application I use (JungleDisk) is somehow faking a removable drive (such as USB). I'm curious how they've built that.

Thanks for the response!

I wonder how hard it would be to use the NTFS pseudo-files that OneDrive used in Windows 8.1 (and abandoned in Windows 10 for being "too confusing to the average user")?