Problem with archive_command

Hi list,

with the following archive_command (on Windows) archive_command = 'copy
%p c:\\Archiv\\DBArchiv\\%f' I constantly have entries like the
following in my log file:
2006-07-14 14:26:59 LOG: archive command "copy
pg_xlog\000000010000000200000037
c:\Archiv\DBArchiv\000000010000000200000037" failed: return code 1

2006-07-14 14:27:00 LOG: archive command "copy
pg_xlog\000000010000000200000037
c:\Archiv\DBArchiv\000000010000000200000037" failed: return code 1

2006-07-14 14:27:01 LOG: archive command "copy
pg_xlog\000000010000000200000037
c:\Archiv\DBArchiv\000000010000000200000037" failed: return code 1

2006-07-14 14:27:01 WARNING: transaction log file
"000000010000000200000037" could not be archived: too many failures

Thanks for any advice!
Chris