help!!

hi guys
I have problem with my .dll file I wrote ..

I am trying to use the api DeviceIoControl to sent a irp to the drive, But the BSOD is keep occuring !!

thank you guys for your help
here is my code:

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#include <windows.h>
#include <stdio.h>
#include <string.h>


extern "C" _declspec(dllexport) BOOL LoadSys(LPCSTR lpDriverPathName, LPCSTR lpDriverName, LPCSTR lpDriverDispName)
{
	BOOL bRet = FALSE;
	//CString errMsg;

	SC_HANDLE hServiceMgr=NULL;
	SC_HANDLE hServiceDDK=NULL;

	
	hServiceMgr = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS );

	if( hServiceMgr == NULL )  
	{
		//OpenSCManager
		bRet = FALSE;
		goto BExit;
	}

	
	hServiceDDK = CreateService( hServiceMgr,
		lpDriverName,   
		lpDriverDispName,  
		SERVICE_ALL_ACCESS,   
		SERVICE_KERNEL_DRIVER, 
		SERVICE_DEMAND_START,  
		SERVICE_ERROR_IGNORE,  
		lpDriverPathName,   
		NULL,  
		NULL,  
		NULL,  
		NULL,  
		NULL);  

	DWORD dwRtn;
	
	if( hServiceDDK == NULL )  
	{  
		dwRtn = GetLastError();
		if( dwRtn != ERROR_IO_PENDING && dwRtn != ERROR_SERVICE_EXISTS )
		{  
			bRet = FALSE;
			goto BExit;
		}  

		
		hServiceDDK = OpenService( hServiceMgr, lpDriverName, SERVICE_ALL_ACCESS );  
		if( hServiceDDK == NULL )  
		{
			bRet = FALSE;
			goto BExit;
		}  
	}  

	
	bRet= StartService( hServiceDDK, NULL, NULL );  
	if( !bRet )  //؟ھئô·‏خٌ²»³ة¹¦
	{  
		bRet=FALSE;
		goto BExit;
	}
	bRet = TRUE;
	
BExit:
	if(hServiceDDK)
	{
		CloseServiceHandle(hServiceDDK);
	}
	if(hServiceMgr)
	{
		CloseServiceHandle(hServiceMgr);
	}
	return bRet;
}

 
extern "C" _declspec(dllexport) BOOL UnLoadSys()
{
	SC_HANDLE sch ;
	SERVICE_STATUS ss;
	sch = OpenSCManager(NULL,0,0);
	SC_HANDLE scm ;
	scm = OpenService(sch,"PRMonitor",SERVICE_ALL_ACCESS);
	if (!ControlService(scm,SERVICE_CONTROL_STOP,&ss))
	{
		return false;
	}
	return DeleteService(scm);
} 

extern "C" _declspec(dllexport) void InitialDevice()
{
	int i;
	char namebuff[256];
	SC_HANDLE sch,scm;
	GetModuleFileName(NULL,namebuff,256);
	i = strlen(namebuff);
	while (namebuff[i] != '\\')
	{
		i--;
	}
	i++;
	strcpy(&namebuff[i],"PRMonitor.sys");
	sch = OpenSCManager(NULL,NULL,SC_MANAGER_ALL_ACCESS);
	scm = CreateService(sch,
						"PRMonitor",
						"PRMonitor",
						SERVICE_START|SERVICE_STOP,
						SERVICE_KERNEL_DRIVER,
						SERVICE_DEMAND_START,
						SERVICE_ERROR_NORMAL,
						namebuff,
						0,
						0,
						0,
						0,
						0);
	StartService(scm,NULL,NULL);
	CloseServiceHandle(scm);	
}

extern "C" _declspec(dllexport) HANDLE GetDeviceHandle()
{
	HANDLE device;
	device = CreateFile("\\\\.\\PRMONITOR",
						GENERIC_READ|GENERIC_WRITE,
						0,
						0,
						OPEN_EXISTING,
						FILE_ATTRIBUTE_SYSTEM,
						0);
	return device;
}

extern "C" _declspec(dllexport) BOOL ProcessMonitorOn(HANDLE device)
{	
	DWORD InputBuffer[256];
	DWORD OutputBuffer[256];
	DWORD dwOutput;	
	BOOL bRet = FALSE;
	bRet = DeviceIoControl( device,
							1000,
							&InputBuffer,
							256,
							&OutputBuffer,
							256,
							&dwOutput,
							0);
	return bRet;
}

extern "C" _declspec(dllexport) BOOL ProcessMonitorOff(HANDLE device)
{
	DWORD dwOutput;
	BOOL bRet = FALSE;
	bRet = DeviceIoControl( device,
							1001,
							NULL,
							NULL,
							NULL,
							NULL,
							&dwOutput,
							0);
	return bRet;
}

extern "C" _declspec(dllexport) BOOL RegMonitorOn(HANDLE device)
{
	DWORD InputBuffer[256];
	DWORD OutputBuffer[256];
	DWORD dwOutput;	
	BOOL bRet = FALSE;
	bRet = DeviceIoControl( device,
							1002,
							&InputBuffer,
							256,
							&OutputBuffer,
							256,
							&dwOutput,
							0);
	return bRet;
}

extern "C" _declspec(dllexport) BOOL RegMonitorOff(HANDLE device)
{
	DWORD dwOutput;
	BOOL bRet = FALSE;
	bRet = DeviceIoControl( device,
							1003,
							NULL,
							NULL,
							NULL,
							NULL,
							&dwOutput,
							0);
	return bRet;
}

extern "C" _declspec(dllexport) BOOL ModuleMonitorOn(HANDLE device)
{
	DWORD InputBuffer[256];
	DWORD OutputBuffer[256];
	DWORD dwOutput;	
	BOOL bRet = FALSE;
	bRet = DeviceIoControl( device,
							1004,
							&InputBuffer,
							256,
							&OutputBuffer,
							256,
							&dwOutput,
							0);
	return bRet;
}

extern "C" _declspec(dllexport) BOOL ModuleMonitorOff(HANDLE device)
{
	DWORD dwOutput;
	BOOL bRet = FALSE;
	bRet = DeviceIoControl( device,
							1005,
							NULL,
							NULL,
							NULL,
							NULL,
							&dwOutput,
							0);
	return bRet;
}

extern "C" _declspec(dllexport) BOOL DeleteKey(HANDLE device, LPCTSTR lpszSubKey)
{ 
	char InputBuffer[512];
	DWORD OutputBuffer[10];
	DWORD dwOutput;
	strcpy(&InputBuffer[0],lpszSubKey);
	BOOL bRet = FALSE;
	bRet = DeviceIoControl( device,
							1006,
							InputBuffer,
							sizeof(InputBuffer),
							&OutputBuffer,
							10,
							&dwOutput,
							NULL);
	return bRet;
}

BOOL APIENTRY DllMain( HMODULE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
					 )
{
	switch (ul_reason_for_call)
	{
		case DLL_PROCESS_ATTACH:
		case DLL_THREAD_ATTACH:
		case DLL_THREAD_DETACH:
		case DLL_PROCESS_DETACH:
		break;
	}
	return TRUE;
}
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