keep alive support

Hi All,
Last time I demanded the support for TCP keep alive setting for postgres
odbc driver. I can see the code in 9.3.210, but when I tried msi installer
on windows, I still see the issue of firewall dropping connection.

I have the following setting in registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\:

-

KeepAliveTime: 30000
-

KeepAliveInterval: 1000
-

TcpMaxDataRetransmissions: 10

I had tried it on Linux last time and it was working there. On linux, I had
the following settings:
/sbin/sysctl -w net.ipv4.tcp_keepalive_time=200
net.ipv4.tcp_keepalive_intvl=200 net.ipv4.tcp_keepalive_probes=5

Has it worked for anyone on windows?
Do I need to do any setting on machine?
Is there any tool (on windows) which I can use to see if TCP connection has
keep alive option?

Thanking you.

- Nachiket