There's the Database Connectivity Toolkit from NI, LabSQL from Jeffrey Travis's LabVIEW Open Source Tools at http://www.jeffreytravis.com/lost/, and probably ActiveX methods (haven't used dBase in years so not sure about this). If you do a search of postings related to database access, you'll find a lot of information. Good luck.
If you still need these VIs I have a set I developed. Actually, the xbase file format is in the public domain and writing a parser is pretty easy. In any case, if you still need the VIs give me a shout...
Mike...
mporter@arielcorp.com
Certified Professional Instructor Certified LabVIEW Architect LabVIEW Champion