Unknown FSCTL FILE_DEVICE_FILE_SYSTEM/239

Hi,

I’m dealing with a conflict with newer OneDrive and its file ondemand feature.

It sends an unknown FSCTL code (FILE_DEVICE_FILE_SYSTEM/239) and I get errors like 0xC000CF07.

In the lastest WDK cannot find their use and, if it is a custom IoCtl code, why they use a non-custom ctl code.

Any hints will be appreciated.

Regards,
Mauro.

:frowning: It is an internal code used by CldFlt.sys

Would like MS does not violate their own rules.

What is the call stack when you see this FSCTL? Also, are you above or below CldFlt?

-scott
OSR
@OSRDrivers