Get Engine.StringVariables of base setup in upgrades

[kalyani1217]

Hi,

I have a base setup of v1.0.0.0. In my base setup, I have set Engine.StringVariables["MYSTRING"]="somevalue".
Now I want to fetch the MYSTRING variable value in the upgrade setup (major or minor release).
I tried to fetch value using Engine.StringVariables["MYSTRING"] but returns the value as null.

Please help with how to fetch base setup engine variables in upgrade setup.

[rseanhall]

This feature request is to support what you're asking for - #3704.

Your other option is to write them to the registry yourself like sending them to your MSI package which does something like https://robmensching.com/blog/posts/2010/5/2/the-wix-toolsets-remember-property-pattern/.