In what context and for what purpose?
Using HTTrack suggest you were offloading the pages for viewing on a less capable system. Besides HTTrack there are other "web grabbers" around, Firefox has a few extensions, which may get you around your security issues with running HTTrack.
There isn't a "SharePoint" way to duplicate this (to non SharePoint sites that is). However, if you just need the site in an additional location within the SharePoint ecosphere there are multiple methods:
Utilize the Powershell tools to backup or extract your site and import it into another SharePoint deployment (or the same one in a different location for that matter). These can be used with the OS scheduler to create regular copies.
Use the content deployment tools to "push" content into another site on the same or different farm
Use Database Mirroring / TLOG Shipping to get the data to another farm.
Now the above could be "live" or "static" depending on your configuration. You can lock a Site Collection or set a database to "read only'.
There are "connectors" for various other content management systems, like Dot Net Nuke that will get your content out of SharePoint, however I don't know of any that are "free', and certainly none that will work directly out of the box without some work.