Accessing input filename in an orchestration

I recently needed to access the incoming filename in an orchestration and found it difficult to find the simple answer. I found a few examples of doing so in a pipeline adapter and a couple of cryptic answers on newsgroups but nothing plain and simple. The incoming filename is made available in the message context and can be accessed via:

IncomingMsgName(FILE.ReceivedFileName)

Hope this helps somebody and saves some time.

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