BUG #5022: unkown winsock error 10061

The following bug has been logged online:

Bug reference: 5022
Logged by: Tyler Burd
Email address: tburd(at)cudc(dot)org
PostgreSQL version: 8.4
Operating system: Windows Server 2008
Description: unkown winsock error 10061
Details:

Upgraded from 8.3.4 to 8.4, and we started seeing hundreds of these messages
in the log file:

2009-08-28 14:58:22 MDTLOG: unexpected EOF on client connection
2009-08-28 14:59:10 MDTLOG: could not receive data from client: Unknown
winsock error 10061

I am running numerous Windows Server 2008 servers, but I googled and noticed
some others have had this same problem on Vista. I'm having so many
connection issues caused by this across my server farm that I am reverting
back to 8.3 for the time being.

My complete environment details:
32-bit Windows Server 2008
PostgreSQL 8.4
.NET app connecting with Npgsql 2.0.6

Thanks!
-Tyler Burd