Subject Unhandled dead client connection
Author Bruno Marx

I use FB 2.1.1 (superserver) on Windows Server 2003, XP, and Vista. It
appears that dead client connections (e.g. due to client-server
network failure) are not cleaned up by the FB server. Using isql "show
users" command, I can see that the dead connections never gets cleaned

In firebird.conf I see the "#DummyPacketInterval = 0" commented out.
Although there is a strong warning stating that this setting should
not be used, can I safely use it under the OS listed above? Is there
an elegant way to ensure dead connections are cleanup up?