Texas Instruments TINSPIRE Software Installation Manual page 24

Important information about the setup.ini
6. If you are using the same setup.ini for multiple products be sure
to clear values that do not correspond to the new product. For
example, if you first install the student version and set the
TINSPIRE_SS value to CAS and then later are editing the
setup.ini to install the teacher software, remember to clear the
TINSPIRE_SS value you previously entered.
Example setup.ini file, a list of values follows.
20 Installing and Activating TI Software