bool OpenDirectoryInWindowsExplorerA(const CHAR* szDir)
{
    SHELLEXECUTEINFOA SEI;
    ZeroMemory(&SEI, sizeof(SHELLEXECUTEINFOA));
    SEI.cbSize= sizeof(SHELLEXECUTEINFOA);
    SEI.lpVerb = "open";
    CHAR buffdir[MAX_PATH];
    strcpy( buffdir, szDir);
    SEI.lpFile = buffdir;

    SEI.nShow = SW_SHOW;
    SEI.fMask= SEE_MASK_INVOKEIDLIST;

    if( ShellExecuteExA(&SEI) )
    {
        return true;
    }

    return false;
}


bool OpenDirectoryInWindowsExplorerW(const WCHAR* szDir) 
{
    SHELLEXECUTEINFOW SEI;
    ZeroMemory(&SEI, sizeof(SHELLEXECUTEINFOW));
    SEI.cbSize= sizeof(SHELLEXECUTEINFOA);
    SEI.lpVerb = L"open";
    WCHAR buffdir[MAX_PATH];
    wcscpy( buffdir, szDir);
    SEI.lpFile = buffdir;

    SEI.nShow = SW_SHOW;
    SEI.fMask= SEE_MASK_INVOKEIDLIST;

    if( ShellExecuteExW(&SEI) )
    {
        return true;
    }


    return false;
}



bool OpenFileInDefaultApplicationA(const CHAR* fname) 
{
    HINSTANCE hi = ShellExecuteA(
        NULL, //__in_opt HWND hwnd,
        "open", //, __in_opt LPCTSTR lpOperation,
        fname, //__in LPCTSTR lpFile,
        NULL, //__in_opt LPCTSTR lpParameters,
        NULL, //__in_opt LPCTSTR lpDirectory,
        SW_SHOW //, //__in INT nShowCmd
        );

if(hi > (HINSTANCE)32) 
     return true;

    return false;
}


bool OpenFileInDefaultApplicationW(const WCHAR* fname) 
{
    HINSTANCE hi = ShellExecuteW(
        NULL, //__in_opt HWND hwnd,
        L"open", //, __in_opt LPCTSTR lpOperation,
        fname, //__in LPCTSTR lpFile,
        NULL, //__in_opt LPCTSTR lpParameters,
        NULL, //__in_opt LPCTSTR lpDirectory,
        SW_SHOW //, //__in INT nShowCmd
        );

    if(hi > (HINSTANCE)32) 
        return true;

    return false;
}