The Sapgui 4.6D for Windows that we use at work, open a port listen on a port <1024, wenn you connect to this port, maybee with nmap or nc or something else, the sapgui crashed with "unknown connection data". Can you reproduce this? Or is it a local Problem? Greetings Falk -- Falk Siemonsmeier /"\ Friedrich-Wilhelm-Str.12 \ / ASCII Ribbon Campaign 32457 Porta Westfalica x Say NO to HTML in email and news Germany / \