Hello. It is me again back with something annoying. Today, I am trying to program some MT2000s. However, whenever I go to run the MTSX software, it shows me something about 'Phar Lap's 286 DOS Extender" and then crashes to the DOS prompt with no given errors. I have tried a few versions. This also happens on the old DOS based Astro RSS and a few others that also use the format with the ".ODB" files and "RUNTIME.EXE". My computer is a Pentium II and I have tried from a FreeDOS boot disk and MS-DOS boot disk. Interestingly it seems to take slightly longer to crash for MS-DOS than FreeDOS. I have tried with EMM386 and HIMEM both on and off. I suspect the problem is with memory management when this DOS extender runs, because I have googled it and it seems problematic in its day. It is probably not a CPU speed issue- I have successfully programmed many Motorolas with this computer and older RSS packages, and this version of MTSX is dated some time in this century I think. Any suggestions? Thanks.