As a note for clarification, the only compiler supported in MPLAB v6.xx is MPLAB C18. Other compilers will be added soon, starting with the Hi Tech compiler in v6.10. Optimization was the key focus for MPLAB C18 v2.00, and an upcoming version v2.10 compiles even smaller code. For full-featured, highly optimized, well supported compilers for the Microchip 18xxxx parts, MPLAB C18 is well worth looking into. As noted here, the demo can be downloaded and used for 30 days. This is the full compiler and all libraries, supporting all PIC18xxx parts. Darrel Johansen Advance Architecture Manager Development Systems Microchip Technology Inc. 480-792-7514 darrel.johansen@microchip.com www.microchip.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu