file from winnt\system32 not backuped

Hi,
The TSM backup/archive client (v4.1.2.14 for windows2000) seems to backup every 
day the (unchanged) ftp.exe file (please see the extract of the dsmsched.log)

==== Start Extract of dsmsched.log =======
...
...
11/20/2001 02:34:21 Normal File-->  38,160 \\terserv\c$\WINNT\system32\FTP.EXE 
[Sent]
...
...
11/21/2001 00:13:56 Normal File-->  38,160 \\terserv\c$\WINNT\system32\FTP.EXE 
[Sent]
...
...
==== Stop extract of dsmsched.log ==========

If I query the TSM server, I discover the file ftp.exe hasn't been backuped.

c:\Program Files\Tivoli\TSM\baclient>dsmc q backup -inactive 
"\\terserv\c$\winnt\system32\f*"

Tivoli Storage Manager
*** Fixtest, Please see README file for more information ***
Command Line Backup Client Interface - Version 4, Release 1, Level 2.14
(C) Copyright IBM Corporation, 1990, 2000, All Rights Reserved.

Node Name: KY-TERSERV
Session established with server CALDERONE: AIX-RS/6000
  Server Version 4, Release 1, Level 4.4
  Data compression forced on by the server
  Server date/time: 11/21/2001 14:03:38  Last access: 11/21/2001 14:03:21

     Size      Backup Date        Mgmt Class A/I File
     ----      -----------        ---------- --- ----
   31,504  05/29/2001 13:42:12    DEFAULT     A  
\\terserv\c$\WINNT\system32\fax.cpk
    1,361  05/29/2001 13:42:12    DEFAULT     A  
\\terserv\c$\WINNT\system32\faxcount.h
    1,505  05/29/2001 13:42:12    DEFAULT     A  
\\terserv\c$\WINNT\system32\faxperf.ini
   50,688  05/29/2001 13:42:12    DEFAULT     A  
\\terserv\c$\WINNT\system32\faxserv.msc
1,109,264  07/05/2001 00:41:34    DEFAULT     A  
\\terserv\c$\WINNT\system32\FM20.DLL
   28,944  07/05/2001 00:41:34    DEFAULT     A  
\\terserv\c$\WINNT\system32\fm20ita.dll
   95,864  07/17/2001 01:12:39    DEFAULT     A  
\\terserv\c$\WINNT\system32\FNTCACHE.DAT
   21,692  05/29/2001 13:42:12    DEFAULT     A  
\\terserv\c$\WINNT\system32\folder.htt
   34,064  05/29/2001 13:42:12    DEFAULT     A  
\\terserv\c$\WINNT\system32\FORMAT.COM
   38,912  05/29/2001 13:42:12    DEFAULT     A  
\\terserv\c$\WINNT\system32\fsmgmt.msc

Any idea?
Thanks a lot

Paolo Nasca
Cleis Technology srl
Via E. Raggio, 4
I-16124 Genoa (Italy)
Switchboard Genoa: +39 010 24858.11
Switchboard Milan: +39 02 66740.11
Mobile: +39 347 5927323