>We have a client that uses MS Access to query our Foxpro for Windows version 2.6 database. We have just upgraded the database to VFP 5.0 and now the Access queries no longer work. They get an invalid operation error. Do we have to query VFP tables different from Foxprow 2.6?

VFP Tables are not readable by 2.6 - if you want to make them readable, issue COPY TO tablename TYPE FOX2X - this will put them back to 2.6 format. You can still read them with VFP though.