WHEAI.H

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

d:\th\minkernel\ntos\whea

and draws from it the following type definitions:

Line Number Type
100 struct _WHEAP_ERROR_SOURCE
122 struct _WHEAP_ERROR_SOURCE_TABLE
131 union _WHEAP_ERROR_RECORD_WRAPPER_FLAGS
142 struct _WHEAP_ERROR_RECORD_WRAPPER
163 struct _WHEAP_WORK_QUEUE
186 struct _WHEAP_INFO_BLOCK

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