What’s “PCTTunneller? (Port 2274)

Looking at active connections on the LAN, I see a connection with 2274 sitting at three times the next highest rx bytes… IANA says 2274 is assigned to “PCTTunneller” and the contact is listed as info@pctworld.com but http’ing to pctworld.com or www.pctworld.com says there’s no server there. While waiting to see if email responds, I’m wondering if anyone here’s ever heard of this or seen it?