Hi,
The current way that Firefox Portable and Thunderbird Portable work triggers the UAC and failed installation warnings in Windows Vista.
Given that half the point of having portable apps is so that they can be used on machines that the user doesn't control it's not sufficient to blame Vista and say that UAB should eb turned off.
My understanding is that the current portable apps actually work by installing themselves one start up and then uninstalling themselves on shutdown.
Do you have plans for moving to an alternative way of packaging these apps that will work without requiring any elevated privileges?
Jim