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The background thread will check if there is a file in that directory. Then the following will occur:
1) The If it is a zip file, it is extracted using the password.
2) The csv is processed (users are imported)
3) The zip/csv file is moved up one directory to a folder ..\\PreviousUserUpload\\ to save it in case of errors during processing.
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5) An email is fired off reporting success/errors to a MarineLS admin(s).
6) The backed up zip/csv file from (3) is deleted after 7 days.
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