BUG #2413: connection refused 0274D/10061

The following bug has been logged online:

Bug reference:      2413
Logged by:          Platonov
Email address:      platonovvp@agrisovgaz.ru
PostgreSQL version: 8.0
Operating system:   Microsoft Windows 2000 Server 5.0.2195 Service Pack4
Description:        connection refused 0274D/10061
Details:

Help me ,please.

What difference between installation PGSQL on win-2000 and
win-2000-server or on WIN-XP ?

When i try to connect to installed PGSQL on win-xp or win-200-server
from other host of local net, i get the message :

Connection refused (0x0000274D/10061)
       Is the server running on host "192.168.1.21" and accepting
       TCP/IP connections on port 5432?

When i installing PGSQL on Win-2000 (not server) i have no this
problem.

All changes in  pg_hba.conf and in postgresql.conf have done.Maybe i must to
 open
some extra parameters in postgresql.conf file or do something else ?

Os name : Microsoft Windows 2000 Server
Version : 5.0.2195 Service Pack4 Build 2195.

Version of PGSQL : 8.0
Excuse me for my poor English,please.
---------------
Best regards Платонов Владимир (Platonov Vladimir from
Russia).
mailto:platonovvp@agrisovgaz.ru