Understanding the autosandbox.log file

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1

In the autosandbox.log file what is the meaning of the token “Source:”?

as in

26/08/2012 20:48:53 Autosandbox candidate: C:\DOCUME~1\CuriousCat\LOCALS~1\Temp\rundll32.exe
[Source: http://gojunkkeyman.dyndns-at-home.com/news/gmy9ym1l2m299gg9w502.php?param=uk&length=337715&name=88&]
[Opened by: C:\Program Files\Java\jre6\bin\client\jvm.dll]
[Reason: 0x00040000]
→ Result: Sandboxing (because policy set to Auto).

Thanks
A

2
In the autosandbox.log file what is the meaning of the token "Source:"?
http://www.audioenglish.net/dictionary/source.htm