TOPIC:

    if(!is_writeable($xerte_toolkits_site->import_path)) { 
        _debug("{$xerte_toolkits_site->import_path} needs to be writeable. Cannot perform import");
        die("{$xerte_toolkits_site->import_path} needs to be writeable");
    }

// Replacement function for the standard php is_writable because of bugs in Windows
//
// From comments on the manual page of is_writable
//
// Since looks like the Windows ACLs bug "wont fix" (see http://bugs.php.net/bug.php?id=27609) I propose this alternative function:
//
function _is_writable($path) {

    if (is_dir($path) || $path{strlen($path)-1}=='/')
        return _is_writable($path . ($path{strlen($path)-1}=='/' ? "" : "/") . uniqid(mt_rand()).'.tmp');

    if (file_exists($path)) {
        if (!($f = @fopen($path, 'r+')))
            return false;
        fclose($f);
        return true;
    }

    if (!($f = @fopen($path, 'w')))
        return false;
    fclose($f);
    unlink($path);
    return true;
}