pbanj, I'm pretty sure jwzg was aware of what the ZIP does, but that he (just like me) is curious to learn what the actual internal changes to the system partition are, and if the same effect can be achieved manually e.g. via "adb shell".
pulled from the file
ui_print("***************************************************");
ui_print("***************************************************");
ui_print("Remove Handsfree Activation");
ui_print(" ________ ___ _____________ ___ ____ _______");
ui_print(" / ___/ _ \/ _ | / __/ __/ _/ |/_/ |/ /\ \/ / ___/");
ui_print("/ (_ / , _/ __ |/ _// _/_/ /_> </ / \ / /__ ");
ui_print("\___/_/|_/_/ |_/_/ /_/ /___/_/|_/_/|_/ /_/\___/ ");
ui_print("***************************************************");
ui_print("***************************************************");
show_progress(1.000000, 0);
ui_print(" Mounting SYSTEM...");
run_program("/sbin/busybox", "mount", "/system");
set_progress(0.250000);
ui_print(" Deleting SYSTEM/app/vdmc.apk...");
delete("/system/app/vdmc.apk");
set_progress(0.500000);
ui_print("Update complete. Enjoy!");
set_progress(1.000000);