I have to make a programm that has to work on a network with two commputers, but I don't want to use sockets because all this has to do is to make changes in a database. Is it possible to register the same database on both computers. and if two user makes changes on the same field in the same time, what happends, it is rewriten and i lose the first change? My database is made in access xp. do i have to resolve this from my programm or odbc (windows) knows not to let anybody change a field until the first change is made?? escuse me for my english.