At least with the spanish version the commit it’s near the end of the onrun function at codeunit 80. 
Be carefull when using commits… remember that if an error cancels a process while not reaching a commit all changes done by that process are undone, but if you use a commit, al changes before the commit can’t be undone automatically when having errors. BTW… it’s useful when you havea process that has a lot of records to work with and you want to keep changes of the records you’ve sucessfully work with… but remember using at the point you’re sure the changes done are totally correct if reached (before obtaining the next record you’re working with). That way can keep you from re-starting from begining some tedious lot-of-time-requiring processes… Regards, – Alfonso Pertierra apertierra@teleline.es Spain