saving install location to environment variable (?)

[opusxxii]

I was wondering if there's a way to save the install location chosen by the user to an environment variable and then use that in a later step to make a file change?

I need to replace a temporary entry in an include file with the install location for my product to work correctly.

Thanks =x

[Steff74]

see:

http://community.installshield.com/showthread.php?s=&threadid=136182