Dux Gregis wrote: > No, $479f is a merchant call. It's either $21a1 (1.3) or $2193 > (1.2) in > the ROM. Can you send me some sample code on how to use all this to lock and unlock the memory? I'm guessing that I set the flags and make the call. How are the (sqrt)KEY and similar programs created? Also, does anyone have info on _CXCURAPP? Thanks. -Jeremy