You can install pgadmin, it contain s psql.
2011/9/22, Andreas <maps.on@gmx.net>:
> Hi,
>
> can I just install psql on windows?
> Just the client without the server.
> There ist the server release as zip-file that includes psql so I at
> least hadn't had to actually install a service with a db cluster but
> having to keep all the server binary around is a wee bit overkill when I
> just need the client.
>
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pasman