Open menu item 'File' - the last item of submenu you'll see -
Driver DBFCDX. Press Enter on it - and you will switch to DBFNTX -
now databases will open with DBFNTX driver. You can use simultaneously
DBFCDX and DBFNTX in different areas.
I find your program will cause conflict with DBCS words in my country.
My country use the folowing coding style for DBCS displaying
    High byte : 81H -- FEH (total 126 characters)
    Low byte : 40H -- 7EH,A1H -- FEH (total 157 characters)
    Hisg + Low = Chinese word (DBCS)
You see if use some character bigger than 81H then it is easy for
my chinese system to 'combine' them in ONE chinese word and will
cause window become chinese words fill out ...
You can change window symbols by such a way:
Create in directory, where you place DBC.EXE, file DBC.INI and add
to it a line:
    ORAMKA="******** "
Then window border will be consist of '*'. Changing ORAMKA value you can
change window symbols - this value is cBoxstring from @ ... BOX
statement.
If you have another questions about using DBC, e-mail me.