XCopy comportarse extrañamente

C:\tgzmake>xcopy files* work /e /h
filesd.zip
1 File(s) copied

C:\tgzmake>xcopy files\* work /e /h
Overwrite C:\tgzmake\workd.zip (Yes/No/All)? a
filesdduke13.zip
files7.zip
filesPack.exe
filesz313.tar.bz2
files\aaw6.exe
files\abiword-setup-2.0.3.exe
files\AFU Stargate.zip
files\basm286.zip
files\bcx_install.exe
files\bzflag17g2.exe
files\cdda-xtractor-v0_24.exe
files\CmdHerePowertoySetup.exe
files\FirefoxSetup-0.8.exe
files\fmodapi371win32.zip
files\freecommandLinetools.exe
files\isetup-4.1.5.exe
files\nisedit20b5.zip
files\nsis198.exe
files\nsis20.exe
files\Open_Perl_IDE_1.0.11.409.zip
files\ReadAndWriteFromINI.zip
files\ret_pack.exe
files\tar-1.13-1-bin.zip
files\upx124w.zip
files\VB6_Res.zip
files\zoom3_by_and_+_cybermag.zip
filesa8a-kb-the_product_loader.mp3
filesa8b-kb-the_product_main.mp3
filesaco.gif
files\f\FileZilla_2_2_3_setup.exe
files\f\fr-025-final2.exe
files\f\fr08v101.exe
files\f\frame.html
files\v\vb5sp3sys.zip
files\v\vdmlink.zip