UPGRADINGPRODUCTCODE condition not working in wixui_install.wxs in library

Question

UPGRADINGPRODUCTCODE condition not working in wixui_install.wxs in library

I want to change the value of next button to respective dlg if first time install and for maj

Answer 1

UPGRADINGPRODUCTCODE is set only for the hidden uninstallation of a package found via the Upgrade table and FindRelatedProducts/RemoveExistingProducts. This does not show any UI, so conditioning control events off of this property will not be helpful.

By contrast UPGRADINGPRODUCTCODE is not set for the newer installation. If you want to condition your control events on whether a previous version will be uninstalled, you must reference the properties specified in the ActionProperty of each record in the Upgrade table.