The following dialog appeared on my windows machine after each update (12v2, 12v3, 12v4 - see picture). All I could find on previous updates was the Bonjour printer driver for Windows but that did nor solve the issue. Apple's website only has the mac versions of Bonjour. I suspect that Bonjour is only required for networking. Hopefully someone can enlighten me so I can install the required version once and for all and celebrate with a nice bottle of Salon Blanc de Blancs Le Mesnil-sur-Oger 1997.