The only online stuff the Install Manger does is, if you work online, grab your list of purchases from the DAZ servers so it can see if there are any downloaded fiels that need updating, and list anything you have yet to download. If you've downloaded the zips already just place them in the downloads folder and work in Offline mode - they will be listed in the ready to install tab. In the case of content you can also simply unzip and treat the files and folders in the Content folder the way you would the content of a Zip from Renderosity. Plugins and so on are a bit fiddlier to handle manually but can be installed by hand. The Content Management Service is installed by the Install Manager, but isn't needed for it to work and can be uninstalled if you want (especially if you don't use DS). However I do need to note that the ports it uses are purely for local use, so that applications can talk to the service, not for use over the network on the Internet - your firewall should be able to distinguish between local traffic and external traffic. But as I said, if you are a Poser user there's no benefit in keeping the CMS in any event.