typing "dir *.bat" and "dir *.exe" do the same thing. All the basic original DOS commands work too.
I'm pretty sure you can even display both at the same time but that's extremely advanced command use, even for me. I could look it up but I usually don't bother because those commands are executed instantly and it actually take less time (for me) to type out the next command and look at the results than to remember some obscure flag in such a command.
Edit: Oh yeah, and if you want to display the results columns by columns you can also use the /w flag.