Set Environment variable doesn't take effect during install

[sdeschenes]

During my install, I have the installer set an environment variable to a string. And during the install, I have a batfile that needs to read the value of this environment variable. However, the variable doesn't get set until after the installation. Is there another way to get the environment variable set before the installation finishes?

[Gizm0]

Run a .bat file that does the job for you.