||May 19, 2013 20:06
using the recent installers and selecting only a specific package there is still a base set of software installed (there are no options to NOT install them). All the shared routines (licensing etc.), framework, etc. and the big one Workbench (even if you never use it!). I am sure there a few more in there.
Note the size of downloading the ICEM CFD only installer and look at all the extra software in there. The download is 2.6GB. Even after installing, ICEM CFD only uses 1GB of installed space.
This is why we just get the Full iso images instead of all the individual packages. Each individual package has this 1.5+ GB of "extra".