Bill Zissimopoulos

@whyrusleeping sorry for the late response. I am trying to understand your use case better. To clarify WinFsp **DOES** support locking. For example, an application can issue `LockFile` API's and...

In the case of a single computer, the kernel driver automatically handles all file locking for you. What would be gained by forwarding the locking calls to user mode?

Hmmm... this will definitely work on Windows. I believe that it should work on FUSE as well (i.e. that FUSE should honor file locking in the kernel if the file...

@earonesty The share access flags (`FILE_SHARE_*`) are not related to file locking. They are a much simpler mechanism, that allows an application to "exclusively" open a file. Can you please...

@earonesty I can see how passing the share flags might be of benefit in your scenario. ---- **EDIT**: I looked into making `ShareAccess` available to the user mode file system,...

Please try such tests against MEMFS as this is the reference file system for WinFsp.

@thinkport thanks. Is it possible to post the output created by running `diag.bat` inside `\Program Files (x86)\WinFsp\bin`?

BTW, does this problem happen against [3ds max trial](https://www.autodesk.eu/products/3ds-max/free-trial) so I can try to repro?

@thinkport, thank you. I will check this tomorrow morning. A last request: if you have a link with a file that exhibits the problem it will be very helpful.

@thinkport unfortunately I am unable to run 3dsmax. The reason is that I need to run it in a VM where I have all my tools installed for proper debugging...