Use this option if the original log file needs to be reformatted
before monitoring begins. If you specify a command or program in
this box, it is carried out before the log file is monitored. This
command or program can produce a file which the policy
uses instead of the original log file.
NOTE
Log files which contain binary data cannot be processed by the
Logfile Entry policy, and must be preprocessed using this
option.
Process a log file before monitoring:
Right-click the policy and select All TasksEdit...
Select Source.
Select Preprocessing. Type the file or command
to be carried out and the file to be read.