Got Problems with libpg.dll

Hi!
I tryed to connect my PostgreSQL Database - running on FreeBSD - with an
Windows Client for many
times.
-------------------------------------------------------------------------------------------------
PGconn *conn;
conn = PQsetdbLogin("192.168.1.34", "5432", NULL, NULL,
"mainhm","mike","****");

CString err;
if (PQstatus(conn) == CONNECTION_BAD) {
err.Format("Es ist ein Fehler aufgetretenn%s", PQerrorMessage(conn));
AfxMessageBox(err, MB_ICONSTOP | MB_OK);
TRACE("%s",
err);
PQfinish(conn);
}
-------------------------------------------------------------------------------------------------

My second
attempt:
-------------------------------------------------------------------------------------------------
PGconn *conn;
conn = PQconnectdb("hostaddr='192.168.1.34'
port='5432'");
-------------------------------------------------------------------------------------------------
I get errors , durring i try to connect with PQsetdbLogin:
"connectDBStart() -- connect() failed Is the postmaster running (with -i) at
'192.168.1.34' and accepting connections on TCP/IP port 5432?"

If i try to connect with PQconnectdb, the postmaster says: "Unexpected EOF
of client connection"
The Client says: "fe_sendauth: authentication type 5 not supported"

What have I done wrong??
thx Michael
I use M$ VC++ 6 SP 5 on Win2000 SP3

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