open a Dos prompt and go to the right folder. It should be osmething like: f:\brett\smallsize\ver1_20_nov_02 then run the batch file to set all the environment variables. This is setall.bat so: blah \> setall Now to compile code run fbuild (ie flash build) with appropriate parameters. fbuild by itself will list the parameters. Typically you want: blah > fbuild drive -dOMNIBOT -dRID8 this will build drive (the main code) with an OMNIBOT servo loop and robot id number 8. Now to program to the flash. for general use: blah > p for example, the full code in ver1_20 is usually blah > p ver1_20 drive remember to put hte robot on the powersupply (on 7.2 to 8V) , and also to turn it on when it's done, turn off robot, unplug, put cover on and let rip EXTRA: if you get an error erasing then see Brett. If you know what you are doing then use pfirst instead of p to program the robot.