If your variable value contains path information, set this property to true if you wish to use a file separator at install time that is appropriate for the target machine. It performs a replacement of all "/" and "\" characters in the variableValue before updating the environment variable. The value is resolved before the path is normalized. The appropriate file separator is determined using the File.separator constant suppied by the JVM.

For example, if you set MYAPP_CONFIG to "$P(absoluteInstallLocation)/application/MyAppConfig.txt", then at runtime on a Windows machine, the actual value might look like
"C:\Program Files\MyCompany\MyApp\application\MyAppConfig.txt".

Whereas, when installing on a Solaris machine, it might look like
"/opt/MyCompany/MyApp/applications/MyAppConfig.txt".