Does Trainz paintshed have to be registered separately if it came in a bundle?

I have Trainz 2004 deluxe edition, it comes bundled with paintshed. When I registered Trainz 2004 did that also register paintshed or would I have to register it separately?
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No but it may not work, and you can not upload to DLS.

I bought it separately when it first came out and had to register the serial number on the MyTrainz Serial Number page but I don't think I had to register it when it came bundled with UTC or as part of TRS2006.Only one serial showing in my account.

Trainz Paint Shed V1.3 (Download Only)
AUPS-XXXX-CCCC-BBBB-MMMM-LLLL

Yes, it is a fake serial I'm showing.