I'm not sure if the software in question will even run from "full path", but you can enable the "process ZIP and 7z contents" switch in the top-bar of the file-chooser (PkZip icon). With this set, you can open the contents by double-clicking the archive (Right or Enter do the same) and directly select the ZIP or 7z member file.

A mind is like a parachute. It doesn't work unless it's open. [Frank Zappa]