Problems in Installing windows Client Libraries for Postgresql

when we execute

nmake /f win32.mak

we are getting a follwoing error

cd include
if not exist pg_config.h copy pg_config.h.win32 pg_config.h
cd ..
cd interfaces\libpq
nmake /f win32.mak
Building the Win32 static library...

No configuration specified. Defaulting to Release.

cd ..\libpq++
nmake /f win32.mak
cd ..\..\bin\psql
nmake /f win32.mak
cd ..\..
echo All Win32 parts have been built!
All Win32 parts have been built!

After Directory mapping and

on executing the Psql

we are getting the follwing error

psql:could not create socket An address incompatible
with the requested protocol was used
(0X0000273f)

Please do advice Group ,

Thanks
REgards

Neelakantan