Geoff Chappell, Software Analyst
The public symbol file NTKRPAMP.PDB for the original release of Windows 10 tells that the kernel is built with the CLFSLSN.H header at
and draws from it the following type definitions:
|74||unnamed struct offset in _CLS_LSN|
The header CLFSLSN.H is not known in any Device Driver Kit (DDK) or Windows Driver Kit (WDK).