Logging query for Postgresql 8.1

Hello,

I have a few queries regarding logging in Posgtresql 8.1 on windows:

1) Is the -l <filename> option same as using the log_directory and
log_filename attributes in postgresql.conf (assuming redirect_stderr is
on).
2) Is it ok to not see the -l <filename> details in the properties of
Postgres service in the Service manager of Windows even though the service
has been registered with this option.

Looking forward to your response.

Regards,
Ritu
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