<br>Hmmmm.<br><br>You'd have to use re-direction to store the results of the dos command in a text file. Then have your program open and parce the text file, loading the useable information in a string delimited with ';', then set the list box data source to that string.<br><br>Problem with the callback concept here is that you'd have to provide the address of your Access function to the DOS (internal) command. And of course the DOS internal command would have to be aware or this additional information and know how and when to use it. <p>Amiel<br><a href=mailto:amielzz@netscape.net>amielzz@netscape.net</a><br><a href= > </a><br>