[Zope] checking Zope's version number

Is there a way of detecting Zope's version number? (I know there is an environment variable REQUEST.environ['SERVER_SOFTWARE'], but is there a better/standard way of accessing Zope's version number?) (I seem to have problem using the context.registerHelp() in a product's __init__ method under Zope 2.1.6.) regards, Hung Jung _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com.