This is pretty obvious, but... you do not say whether or not you moved the DBC itself to the new directory. After you move everything to a new directory, make sure it all got moved properly by opening stuff from the command window, in the other directory. Because the error you are getting should appear in interactive mode if it appears while running the DBC.

Adam

>...but when I build the EXE and move it to a test directory (along with
non-included DBFs and CDXs), the error occurrs on the first attempt to open any included table.
Any help or constructive comments would be appreciated.