This project is created for research Intel Desktop Utilities Health monitoring (Fans, ThermalSensor, Voltage Sensors).
I have disassemble AfscComm.dll library - part of Intel Desktop Utilities.
There is result of my work - Win32 console utility for gather health information throuth HECI driver.

// GUID of Health montoring HECI client 
// this GUID was taken by disassemble AfscComm.dll - Intel Desktop Utilities component
//
DEFINE_GUID(HECI_HEALTH_GUID,
			0x6B5205B9,0x8185,0x4519,0xB8, 0x89, 0xD9, 0x87, 0x24, 0xB5, 0x86, 0x07);

For the first connect to HECI health client:
...DeviceIoControl(CreateFile(\\pci\\path to your heci),IOCTL_HECI_CONNECT_CLIENT,HECI_HEALTH_GUID)

There is commands for get health information from HECI driver (HECI.sys):
Use ...WriteFile(CreateFile(\\pci\\path to your heci),command);

// Get thermal sensor values
BYTE chThermCommand[5]=	{0x12,0x00,0x00,0x3d,0x00};
// Get fan tacho values
BYTE chFanCommand[5]=	{0x37,0x00,0x00,0x19,0x00};
// Get voltage values
BYTE chVoltCommand[5]=	{0x58,0x00,0x00,0x29,0x00};

Then return result of command:
...ReadFile()
Output format:

#pragma pack(1)

typedef struct _THERM_SENSOR
{
	BYTE bValid;
	DWORD dwValue;
}THERM_SENSOR,*PTHERM_SENSOR;

typedef struct _VOLT_SENSOR
{
	BYTE bValid;
	DWORD dwValue;
}VOLT_SENSOR,*PVOLT_SENSOR;

typedef struct _FAN_SENSOR
{
	BYTE bValid;
	SHORT dwValue;
}FAN_SENSOR,*PFAN_SENSOR;

typedef struct _HEALTH_INFO
{
	BYTE bReserved;
	union
	{
		THERM_SENSOR	Therms[6];
		VOLT_SENSOR		Volts[5];
		FAN_SENSOR		Fans[4];
	}u;
}HEALTH_INFO_STRUCT,*PHEALTH_INFO_STRUCT;

#pragma pack()



Download Source code

Useful links:
Intel� Desktop Utilities
Intel� AMT Software Development Kit (SDK)
Intel� AMT Open Source Drivers and Tools

Screenshot (tested on Intel� Desktop Board DJ965RY):
IDU:


My console test app:




Another example on how to gather health-sensor data from IPMI (test on Intel Server board S3200):

Intel Command Line Interface tool screenshot:


Download My Source Code