Specifies the files the operation's log will be written to. If multiple values are specified, all the files specified are written to.
If one of the values is @STDOUT the log will be written the standard output stream.
If one of the values is @STDERR the log will be written to the standard error stream.
If the only value is @NULL log will not be written.
If one of the values is @MESSAGEBOX, messages will be shown in a messagebox. The messagebox has SERVICE_NOTIFICATION flag.
Note:
If the -fd (ForceDirectories) switch is absent, an attempt to create a file in a non-existing directory will produce an error.
By default, disk files are replaced. To append information to an existing report file use the -ro ReportOptions switch.
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