I need to develop a multiuser database application to be used by four people(The number of users are not likely to increase). It is for storing records of different versions of particular papers. I am new to building such an application. I would like to know what would the requirements be for using Access as the means for building the multiuser database. Two of the four use Access 2000(running Windows 98) and other two use Access 2003(running Windows 2000). Can any one machine serve as server to host all queries from the users or do I need another machine to act as the server for the queries(if so please let me know what OS should it use). I would appreciate any advice and guidance regarding building such a system.