DATAVIEW is a Visual Basic program and therefore requires
the Visual Basic libraries to run. There are 3 libraries
required: cmdialog.vbx, commdlg.dll, and vbrun300.dll.

These 3 libraries are very common since many programs
require them. You should, using File Manager, examine your
windows\system directory to see if you already have them.
If you have all three, just delete cmdialog.vbx and
commdlg.dll from the unzipped Dataview files. If you don't
have them, I suggest you place cmdialog.vbx and
commdlg.dll in your windows\system directory so that other 
programs that require these libraries can find them. You
can leave them in the same directory as Dataview, but then
other Visual Basic programs in other directories will not
be able to find these libraries.

If you need vbrun300.dll, it is available separately in
the sport rocketry library. You should also place 
vbrun300.dll in your windows\system directory.