Don't you know, how is it possible, that when a TCP client running on PPC connects to server running on PC over ActiveSync, there are no packets captured by the Wireshark running also on this PC? I tried to listen on all of possible interfaces, but always with the same result.
It isn't possible to 'connect' to anything an not send packets.
1. It is already connected. Something either started the service earlier or it started when the computer booted.
2. Wireshark isn't catching everything. Maybe packets are filtered or there are more than one IP stacks.
3. You are initiating some activity that doesn't actually require any traffic, maybe the data is cached locally and so it doesn't go via the network.