In order to reduce confusion, you might refer to the DBD::XBase file as DBD/XBase.pm, rather than XBase.pm. :)

You can check if you have the XBase module (as opposed to the DBD::XBase module) like this: perl -MXBase -ce 1 It looks like the XBase bundle includes DBD::XBase, XBase, XBase::SQL, and a few other modules...