YAPI 1.02 - YAPI is a Newton application that transfers packages to the Newton using 

the Xmodem protocol. Since it does not require MNP or AppleTalk, as other package downloaders do, packages can be sent from communications software available on most PCs and workstations. Connect a cable between the host and the Newton (more about cables below). Start the comms software on the host (PROCOMM, Zterm, sb, ..., whatever can do Xmodem). Setup the comms software to do Xmodem transfers with 128 byte blocks and checksum error detection. Initiate the Xmodem transfer on the host, then click on the "Download" button in the YAPI window on the Newton. There is a progress bar in the YAPI window that gives a rough estimate of the download progress.