DDE Poke
A DDE Poke is when a client passes the server data, but expects no reply. For example, if you wished to insert a value into a particular Excel worksheet cell, you would use the DDEPoke command to do this.
Like a DDE Request, a DDE Poke requires the server’s name, a suitable topic and will also pass a item for in which it wants the data poke’d. For example, if the topic was a particular recoord, and the item a field within the record, then a poke would cause the server to change the value of the field.