Total Commander

Compare by content (Ctrl-F3, More options - Compare) doesn't work when I unpack files from archive and have the same files.
File overwrite prompt window pops up, but Ctrl-F3 which is used to compare files, does nothing here, unlike when i copy/move files from folder.
Maybe it is intentional (since Compare from menu is not available in that window also) but I don't see a reason why it shouldn't work from while unpacking archive.

Support++ - that could be a nice feature to have.

It's currently not supported because solid archives were causing problems.