RANGE.H

The public symbol file NTKRPAMP.PDB for the original release of Windows 10 tells that the kernel is built with the RANGE.H header at

d:\th\minkernel\ntos\rtl

and draws from it the following type definitions:

Line Number Type
55 struct _RTLP_RANGE_LIST_ENTRY
68 unnamed struct for Allocated in _RTLP_RANGE_LIST_ENTRY
85 unnamed struct for Merged in _RTLP_RANGE_LIST_ENTRY

The header RANGE.H is not known in any Device Driver Kit (DDK) or Windows Driver Kit (WDK).