That program is Microsoft Access. There's no "MDB Viewer". Any
programming language can use the DAO or ADO object library to read the
tables and queries in an .mdb file, but not the Access-specific stuff.
There are several 'editions' of Office (exactly what editions are available
is something that varies from one version of Office to the next). Some of
these editions include Microsoft Access, others do not. See Microsoft's web
site for details, the URL below lists the programs included in each edition
of Office 2003 ...