There is indeed a high bar of entry, although this is not necessarily true for the user mode components.

BTW, please consider contributing to WinFsp :) You do not have to contribute to the core project if you find the license unpalatable or any other reason. But there are other ways that one could help. Creating a C# or Java wrapper would be very useful, for example.

The cygfuse project also needs help and this one intends to work with both WinFsp and Dokany:

https://github.com/mgeisert/cygfuse

> Many of your potential contributors may also lack the required operating system to do the work...

That is an interesting thought. I wonder if I could spend some time to try making this compile on Win7.