Hi Thomas, thank you!
However, for Ping(..) you need to know the IP or NetMachineName(..) of the connected computers of the same workgroup in the network first. This is the main problem. I do not intend to scan all ports (65000) of the connected computers but rather would reduce the scanned ports to 4900 - 5000, forcing those who install a Manta service on their computers to that range of ports.
So, I'm looking for a small routine to list those computers of the network which are visible to that workstation. After that I'd test the possible 100 ports for being a HF C/S server an try to get a status from it. After successful 'contact' I'd ListAdd the server:port to a combo-box.
Kind regards,
Guenter