I am using a Basic MSI project built in IS2013 (not upgrading from a previous IS project). I would like to set conditions on certain components (XML and Text file changes and such) based on Version numbers (for upgrade purposes). I use the registry component to store the current version on install. What I want to do is, when running updated versions of the MSI, I need to grab the registry value for the previously installed version, then use that value to conditionally install updated components. I.E. A component condition could read something like this '[PREVIOUSVERSION] < [ProductVersion]' (the current installer version) or '[PREVIOUSVERSION] > "1.0.0.1" AND [PREVIOUSVERSION] < "1.0.1.0"' The problem is, I know that the Version properties are stored as Strings and I don't think strings evaluate correctly like this. Is there an easy way to accomplish this logic and am I heading in the right direction? Is there another mechanism in IS2013 that accomplishes this logic that I haven't found yet? Any direction would be appreciated. Thanks ... View more