CWebdavDocumentHistory::GetHistoryService

static function GetHistoryService()
{
	if ((self::$historyService == null) && (CModule::IncludeModule('bizproc')))
	{
		$runtime = CBPRuntime::GetRuntime();
		$runtime->StartRuntime();
		self::$historyService = $runtime->GetService("HistoryService");
	}
	return self::$historyService;
}