这个不是UHARC把.
原版uharc根本没有-sfx开关...
UHARC 0.6a  -----   high compression multimedia archiver   -----   BETA version
Copyright (c) 1997-2005 by Uwe Herklotz     All rights reserved     06 Feb 2005
****  Freeware for non-commercial use  ****  contact: 
uwe.herklotz@gmx.de  ****
Usage: UHARC command  archive 
---< Commands >----------------------------------------------------------------
 a  create archive and Add files         e  Extract files to current directory
 m  create archive and Move files        x  eXtract files with full pathname
 l  List files in archive                t  Test files in archive
---< Switches >----------------------------------------------------------------
 d<0..2>     Set display mode (0 = quiet, 1 = default, 2 = verbose)
 m<0..3,x,z> Set cmp.mode (0 = STORE, 1..3 = ALZ:fast..best, x = PPM, z = LZP)
 md<n>       Set dictionary size in KByte (must be power of 2 : 1 .. 32768)
 mm     Disable/enable built-in multimedia detection/compression
 o    Overwrite existing files (- = never, + = always, p = prompt)
 p<-,r,f,e>  Store (- = no, r = relative, f = full, e = excluded) pathnames
 ph     Archive header encryption   |  ac    Clear file archive attr
 pw  Set password                |  ae<attr>   Set attr exclusion mask
 r      Recurse subdirectories      |  b<n>       Set max filebuffer size
 t<dir>      Set extract target dir      |  bpb   bpb instead of % ratio
 vm     Set virtual memory usage    |  ed    Store empty directories
 y      Assume yes on all queries   |  lg<file>   Log output to <file>
-------------------------------------------------------------------------------
不知道你用的什么版本.