#ifndef _NTPSAPI_H
#if (PHNT_MODE != PHNT_MODE_KERNEL)
typedef enum _SUBSYSTEM_INFORMATION_TYPE
{
SubsystemInformationTypeWin32,
SubsystemInformationTypeWSL,
MaxSubsystemInformationType
} SUBSYSTEM_INFORMATION_TYPE;
View code on GitHub
This enumeration is documented in Windows Driver Kit.