In DDE, topic connect :
Topic: CONNECT
Data (Arguments): one line of text in the form: address,port,channel,number
Returns:Nothing
Example: /dde mirc connect "" irc.undernet.org:6667,#mIRC,1
You change the irc.undernet.org,6667 to irc.undernet.org:6667 but you don't change the data line.
Is it an error ?