Memory Leak within worker thread

[99bobster99]

I have a memory leak whenever this code is executed, any ideas on what I am doing wrong?

typedef struct ACC_MessageBox_Params
{
	int i;
	CString ACC_ErrorBuffer;

	ACC_MessageBox_Params(int Channel, CString AlarmMsg)
	{
		i = Channel;
		ACC_ErrorBuffer = (LPCTSTR)AlarmMsg;
	}
}
	PARAMS, *PPARAMS;


===============================================================
THREAD #1

AfxBeginThread(ACC_MessageBox, (PVOID) new ACC_MessageBox_Params(i, (LPCTSTR)ACC_ErrorBuffer));

===============================================================


UINT ACC_MessageBox(PVOID p)
{
// Worker Thread Pass-In Variables (Channel & Alarm Message) -> i(int), ACC_ErrorBuffer(CString)
PPARAMS pParams = (PPARAMS)p;

// Header Include Files

// Variable Declarations
int	response;

// User Defined Constants

// Set Abnormal (Exception Error Handling) 
set_terminate (myterminate);

// Multithread Synchronization (Single Lock Object)
CSingleLock	lock1(&GlobalMutex); // locks all SQL shared variables (RecordSet1) between threads
CSingleLock	lock2(&GlobalMutex); // locks all TimeStamp and OutputFile shared variables between threads

// Initialize

// Start of Main Code
	response = AfxMessageBox ((LPCTSTR)pParams->ACC_ErrorBuffer, MB_OKCANCEL|MB_ICONEXCLAMATION);
	if (response == IDOK)
	{
		if (!lock2.IsLocked())
		{
			lock2.Lock();				
			OutputFile << (LPCTSTR)TimeStampDT() << "Accucure.Main: MESSAGEBOX - Operator acknowledged alarm on Accucure Ch.0" << (pParams->i) + 1 << "\n";
			lock2.Unlock();
		}	
		CureRemainTime[pParams->i] = 0.0;
		ActualRadiance[pParams->i] = 0.0;
	}
	if(response == IDCANCEL)
	{		
		if (!lock2.IsLocked())
		{
			lock2.Lock();				
			OutputFile << (LPCTSTR)TimeStampDT() << "Accucure.Main: MESSAGEBOX - Operator CLOSED window on Accucure alarm Ch.0" << (pParams->i) + 1 << ". Program will terminate.\n";
			lock2.Unlock();
		}	
		Sleep(100);
		delete pParams;
		pParams = 0;
		exit(0);
	}
ACC_Active_MessageBoxes[pParams->i] = false;
delete pParams;
pParams = 0;
return (0);
}