Prefetch Abort

Når jeg debugger nedenstående kode får jeg følgende fejlmedddelse efter den sidste }.
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Prefetch Abort: Thread=88f5aa68 Proc=8807ec38 'ADODEMO.exe'
AKY=00000401 PC=0069004c RA=8003ea84 BVA=0069004c
First-chance exception in ADODEMO.exe: 0xC0000005: Access Violation.
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test returnere 0 som den skal
funktion skal gemme instillingen af 2 listviews i registryen, hvilket den også gør.

Men hvorfor kommer den med den fejlmeddelse.


LPARAM DoMainCommandSaveSettings (HWND hWnd, WORD idItem, HWND hwndCtl,
                                WORD wNotifyCode) {


    HKEY        hKey;
    DWORD        BufferSize ;
    LPLVCOLUMN  pCol;
    LVCOLUMN    Col;
    HWND        hwndLV;
    int         i = 0;
    Columns        RegStruct [15];
    bool        openReg = false;
    long        test;

    pCol = &Col;

    hwndLV = GetDlgItem (hMain, IDC_LISTVCOMPANY);

    Col.mask = LVCF_TEXT | LVCF_WIDTH | LVCF_FMT | LVCF_SUBITEM;
    while (ListView_GetColumn(hwndLV,i,pCol)){
        RegStruct [i].mask= pCol->mask;       
        RegStruct [i].fmt= pCol->fmt;       
        RegStruct [i].cx =pCol->cx;
        _tcscpy(RegStruct [i].pszText,(LPTSTR)(pCol->pszText));
        RegStruct [i].iSubItem= pCol->iSubItem;       
        RegStruct [i].dbFelt= lvCompColumns[i].dbFelt;       
        i++;
        Col.mask = LVCF_TEXT | LVCF_WIDTH | LVCF_FMT | LVCF_SUBITEM;

    }


    BufferSize = i*80;
       

    if (RegOpenKeyEx (HKEY_LOCAL_MACHINE,TEXT("Software\\Sam-X"),  0, KEY_ALL_ACCESS, &hKey) == ERROR_SUCCESS)
    {
        openReg = true;       
        test = RegSetValueEx(hKey,_T("CompColumns"),NULL,REG_BINARY,(LPBYTE)RegStruct, BufferSize);
        test = RegSetValueEx(hKey,_T("CompCount"),NULL,REG_DWORD,(LPBYTE)&i, 4);
    }


    hwndLV = GetDlgItem (hMain, IDC_LISTVNOTES);
    i = 0;

    while (ListView_GetColumn(hwndLV,i,pCol)){
        RegStruct [i].mask= pCol->mask;       
        RegStruct [i].fmt= pCol->fmt;       
        RegStruct [i].cx =pCol->cx;
        _tcscpy(RegStruct [i].pszText,(LPTSTR)(pCol->pszText));
        RegStruct [i].iSubItem= pCol->iSubItem;       
        RegStruct [i].dbFelt= lvNotesColumns[i].dbFelt;       
        i++;
        Col.mask = LVCF_TEXT | LVCF_WIDTH | LVCF_FMT | LVCF_SUBITEM;

    }

    BufferSize = i*80;

    if (openReg) {

        test = RegSetValueEx(hKey,_T("NotesColumns"),NULL,REG_BINARY,(LPBYTE)RegStruct, BufferSize);
        test = RegSetValueEx(hKey,_T("NotesCount"),NULL,REG_DWORD,(LPBYTE)&i, 4);
        test = RegCloseKey (hKey);
    }
    return 0;
}