Get an environment variable into a WIX property

Question

Is there a way to get an environment variable in WIX into a property?

I\'m trying to get the USERPROFILE with:

Property Id=\"UserFolder\         


        

Answer 1

Alternative is to use SetProperty element - it will effectively create type 51 custom Action. It is simpler than using Custom Action as you don't need to separately specify the schedule for it - everything is done in one element. In my example below, I set the property only if its empty, i.e. was not passed from the command line.

Example: