Path of installation

[Esteban Calle]

I have a problem with a desktop application. I want to get the path of installation. Im doing an installer on windows with innosetup, but my class how it call to installation path?

new FileInputStream("PATHINSTALLATION/RSA/DESTest.txt")

greetings

[Maneesh Godbole]

By setting the APP_HOME value in the registry or system environment?
Disclaimer: I haven't done this myself but I think this was mentioned in a conversation with one of my friends long back.