It does the same as explorer but does it a lot better.
It also does lots of other things, which you need other
programs for if you use another file manager.
Try it yourself, it is a free download from
www.ghisler.com.
There is a nag screen when it is started, but most people
re-start it only when rebooting, so it is fully usable even
before being registered. No time limit, it just keeps on working.
The lame explorer was the reason for the development
of Norton Commander and PC-Tools a long time ago.
Those programs have been developed for many years and
the best two pane file manager now is TC.
TC is supported by a whole armada of freeware addon authors
who create new functionality. Ghisler cooperates with them
and now installation of addons is automatic.
With the addons installed I can go into any kind of archive,
like iso files, cab files etc.. like it was zip files.
I like to have file names color coded, so exe files are red,
text and html files green, media files purple, etc..
It takes years to realize all built in functionality in TC.
I hope that TC will go open source or freeware one day,
just like Opera. Considering all fraternizing he does with
all the freeware authors who help developing TC it sounds
like the logical next step to take.