I am trying to work this DDE example and I cannot find out how to enter = or get data from Excel cells using the Get and Poke buttons. The example = is located at: http://www.angelfire.com/biz/rhaminisys/ddeinfo.html Down the page a little bit is a section called "DDE Software download = area" where you will find the example program called "Sample C program = to control Excel". Are the Excel cells supposed to be formatted for dde use or something. = Most other things work except cell data exchange? Thanks John -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist