The below functions are to write data to a configuration or property file and also read them back.
BuildLocation:C:\Build
BuildExe : setup.exe
Release:r9.7
Silent:No
InstallPath:default
Compare :No
MartUpgrade :Yes
Bit:64
ERwinUpgrade:No
License_File:150416-1952 Navigator (ca.com).lic
You can change the character from ":" to "=" or whatever based on your requirement and update the code also accordingly.
Property.au3