I'll try to describe the problem in a simple way: I once created an Access DB with everything necessary, e.g. mdb, mdw and then put them all in a shared network file something ununderstandable happened: a colleague, whom I granted ONLY read-access, click on the DB he could write in the DB!!! Although as I said I granted him a read-access only. The OS on both PC are windows XP and the MS-Access version on both is 2003. Any help? Thanks for your answers in advance!