This sounds to me as if someone at some point has added in a file named search.js for some form of customization. I don't believe that a file by that name has ever been part of RoboHelp. You should probably pick apart the HTML pages that are asking for this file. You should also look in the project location. It's entirely possible that the file is present among the source files, but isn't making it into the final output and needs to be added to the list of Baggage files.
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