To make a new version of the flow msi you need two Guids. One for the product (upgradecode) and one for the folder in the start menu.
Create your GUIDS here: http://www.guidgenerator.com/online-guid-generator.aspx
1 Change the OutputName tag in the wixProj file. Keep the suffix of buildnumber as it adds a buildnumber to the msi name.
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