[Samba] strange files appearing after file copy

[Jan Evert van Grootheest]

Hello,

I just had something strange happen and could not find explanations in
the documentation, FAQs or mailing list.
The server is a Debian installation running Samba 2.2.3 (kernel 2.4.18
if interested). It has been recently upgraded from 2.0.x (I think x=6).
My smb.conf is at the bottom; the directory used is on the [public]
share.
The client runs Win2k (probably SP2).

I copied some files in the windows explorer to an existing directory on
the server. Somehow, I got more files on the server than I copied! And
the had all those funny filenames, like abcd.jpg:{aksdjlkjl}:$DATA in
addition to abcd.jpg that I copied.
Here are some real world examples:

2002_0626_211216AB.JPG:?Q30lsldxJoudresxAaaqpcawXc:$DATA
2002_0626_211216AB.JPG:{4c8cc155-6c1e-11d1-8e41-00c04fb9386d}:$DATA
2002_0626_213753AB.JPG:{4c8cc155-6c1e-11d1-8e41-00c04fb9386d}:$DATA
2002_0626_213759AB.JPG:?Q30lsldxJoudresxAaaqpcawXc:$DATA
2002_0626_213759AB.JPG:{4c8cc155-6c1e-11d1-8e41-00c04fb9386d}:$DATA
2002_0626_213953AB.JPG:?Q30lsldxJoudresxAaaqpcawXc:$DATA
2002_0626_213953AB.JPG:{4c8cc155-6c1e-11d1-8e41-00c04fb9386d}:$DATA
2002_0626_220822AB.JPG:{4c8cc155-6c1e-11d1-8e41-00c04fb9386d}:$DATA
2002_0626_220857AB.JPG:?Q30lsldxJoudresxAaaqpcawXc:$DATA
2002_0626_220931AB.JPG:?Q30lsldxJoudresxAaaqpcawXc:$DATA
2002_0626_220931AB.JPG:{4c8cc155-6c1e-11d1-8e41-00c04fb9386d}:$DATA

The ones with *:{*}:$DATA look like they have a class id between {}, but
they can't be found in the registry. The others I don't readily
recognize.

Some of these files are empty, some contain a few Kb of data.

Also, such files are not created for all files that are copied....

What are these files? Can I safely remove them? Is this due to the
upgrade and are there some new directives that I need to add in the
samba configuration?
Any hints and/or clues are appreciated.

-- Jan Evert

[global]
   printing = bsd
   printcap name = /etc/printcap
   load printers = yes
   guest account = nobody
   invalid users = root
   security = share
   interfaces = eth0 127.0.0.1
   bind interfaces only = yes
   workgroup = JANEVERT
   netbios name = server
   server string = %h server (Samba %v)
   syslog only = no
   socket options = IPTOS_LOWDELAY TCP_NODELAY SO_SNDBUF=4096
SO_RCVBUF=4096
   encrypt passwords = yes
   wins support = no
   domain master = yes
   local master = yes
   name resolve order = host bcast
   dns proxy = no
   preserve case = yes
   short preserve case = yes
   unix password sync = false
   max log size = 1000

[printers]
   comment = All Printers
   browseable = no
   path = /tmp
   printable = yes
   public = yes
   writable = no
   create mode = 0700

[public]
  comment = Shared disk
  path = /pub/samba/share
  public = yes
  writable = yes
  printable = no
  guest only = yes
  browseable = yes

[extradrive]
  comment = Extra disk space for other machines
  path = /pub/samba/%m
  writeable = yes
  browseable = yes
  guest only = yes
  printable = no
  public = yes
  fake oplocks = yes
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