My setup is now having a custom dialog which a DLL is reading its value. Basically, the DLL is derived from the Installer class. So, before installing, the client enters a key and that will get saved in the Main.ini file. However, I see that the DLL and a related InstallState file is stored on the directory. I would like to avoid that to be stored on the client PC as it is only used for the installation.

Is there a way to avoid that?