Dymo Connect Webservice shuts down

[hunkydoryrepair]

Sending an empty string to a barcode value using recordset causes the dymo connect webservice to shut down and disappear. Needs to be relaunched manually.

We don't always know if a control is a barcode type or not. We may want to just display the numbers in some cases, so defaulting to "0" isn't ideal, but acceptable.

However, it would be better if we could hide the barcode from printing at all if we don't have a value to give it. I think that is what Dymo label Webservice used to do.