NTPSAPI.H

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

d:\th.public.fre\internal\sdk\inc

and draws from it the following type definitions:

Line Number Type
589 struct _PROCESS_DISK_COUNTERS
620 struct _THREAD_ENERGY_VALUES
624 struct _PROCESS_ENERGY_VALUES
652 struct _COUNTER_READING
666 struct _THREAD_PERFORMANCE_DATA
1631 struct _PS_PROTECTION
1646 enum _PS_PROTECTED_SIGNER
2189 struct _JOBOBJECT_WAKE_FILTER
2219 enum _PS_WAKE_REASON

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

For the record, here are the very many more types that Microsoft’s freely published URLMON.PDB reveals were accessible to the source code for URLMON.DLL from including NTPSAPI.H when building Internet Explorer for the original release of 32-bit Windows 10:

Line Number Type
390 struct _Wx86TIB
437 struct _INITIAL_TEB
438 unnamed struct for OldInitialTeb in _INITIAL_TEB
461 struct _PROCESS_PRIORITY_CLASS
466 struct _PROCESS_FOREGROUND_BACKGROUND
475 enum _PROCESS_TLS_INFORMATION_TYPE
484 struct _THREAD_TLS_INFORMATION
497 struct _PROCESS_TLS_INFORMATION
531 struct _PROCESS_BASIC_INFORMATION64
542 struct _PROCESS_EXTENDED_BASIC_INFORMATION64
567 struct _PROCESS_CYCLE_TIME_INFORMATION
579 struct _PROCESS_INSTRUMENTATION_CALLBACK_INFORMATION
589 struct _PROCESS_DISK_COUNTERS
601 enum _PROCESS_ENERGY_COMPONENT_TYPE_NUM
620 struct _THREAD_ENERGY_VALUES
624 struct _PROCESS_ENERGY_VALUES
652 struct _COUNTER_READING
666 struct _THREAD_PERFORMANCE_DATA
679 struct _THREAD_PROFILING_INFORMATION
692 struct _PROCESS_WS_WATCH_INFORMATION_EX
704 union _PROCESS_AFFINITY_UPDATE_MODE
719 union _PROCESS_MEMORY_ALLOCATION_MODE
733 struct _PROCESS_WINDOW_INFORMATION
745 struct _PROCESS_HANDLE_TABLE_ENTRY_INFO
756 struct _PROCESS_HANDLE_SNAPSHOT_INFORMATION
774 struct _PROCESS_STACK_ALLOCATION_INFORMATION
780 struct _PROCESS_STACK_ALLOCATION_INFORMATION_EX
794 struct _PROCESS_MITIGATION_POLICY_INFORMATION
834 struct _PROCESS_FAULT_INFORMATION
845 struct _PROCESS_TELEMETRY_ID_INFORMATION
873 struct _PROCESS_COMMIT_RELEASE_INFORMATION
892 struct _THREAD_BASIC_INFORMATION
907 struct _THREAD_TEB_INFORMATION
919 struct _THREAD_LAST_SYSCALL_INFORMATION
932 struct _QUAD
956 struct _PS_CPU_QUOTA_QUERY_ENTRY
961 struct _PS_CPU_QUOTA_QUERY_INFORMATION
966 struct _PS_CPU_QUOTA_SET_INFORMATION
971 struct _PROCESS_HANDLE_INFORMATION
980 struct _FIBER
1094 enum _PS_ATTRIBUTE_NUM
1122 struct _PS_ATTRIBUTE
1132 struct _PS_ATTRIBUTE_LIST
1185 struct _PS_MEMORY_RESERVE
1190 enum PS_CREATE_STATE
1215 enum _PS_STD_HANDLE_STATE
1222 struct _PS_STD_HANDLE_INFO
1631 struct _PS_PROTECTION
1646 enum _PS_PROTECTED_SIGNER
1661 enum _PS_PROTECTED_TYPE
1712 struct _PS_CREATE_INFO
1716 unnamed struct for InitState in _PS_CREATE_INFO
1734 unnamed struct for FailSection in _PS_CREATE_INFO
1738 unnamed struct for ExeFormat in _PS_CREATE_INFO
1742 unnamed struct for ExeName in _PS_CREATE_INFO
1746 unnamed struct for SuccessState in _PS_CREATE_INFO
1911 struct _X86_CALL_FRAME
1939 struct _CALL_FRAME
2163 struct _JOBOBJECT_EXTENDED_ACCOUNTING_INFORMATION
2189 struct _JOBOBJECT_WAKE_FILTER
2198 struct _JOBOBJECT_FREEZE_INFORMATION
2219 enum _PS_WAKE_REASON
2228 struct _JOBOBJECT_WAKE_INFORMATION_V1
2233 struct _JOBOBJECT_WAKE_INFORMATION
2243 struct _JOBOBJECT_INTERFERENCE_INFORMATION
2247 struct _JOBOBJECT_MEMORY_USAGE_INFORMATION
2254 struct _JOBOBJECT_MEMORY_USAGE_INFORMATION_V2
2275 struct _JOBOBJECT_NOTIFICATION_LIMIT_INFORMATION_V2
2301 struct _JOBOBJECT_LIMIT_VIOLATION_INFORMATION_V2
2403 enum _MEMORY_RESERVE_TYPE
2430 struct _PS_SYSTEM_DLL_INIT_BLOCK
2460 struct _PS_PKG_CLAIM