Socket Mobile Digital Phone Card for Data-Capable Mobile Phone - Manual (Page 12)

10 | CHAPTER 2: PRELIMINARY SETUP
STEP 4: Uninstall Old Socket DPC Software
Windows only! Delete any old Socket DPC software you may have
previously installed on your mobile computer. Refer to the README on the
installation CD for uninstall procedures.
This step is NOT needed for the Casio BE-300 or Apple PowerBooks.