How To Connect PostgreSQL thru VB without DSN

Hi,

I want to know How To Connect PostgreSQL thru VB throughDSN-less
connection.

I used the following syntax
Private Sub ConnectDB
On Error GoTo EH
Dim c As New ADODB.Connection
c.open "DRIVER={PostgreSQL};SERVER=200.200.200.1
;port=5432;DATABASE=MyDB;UID=postgres;PWD=postgres;"
Exit Sub
EH:
Msgbox Err.Description,vbcritical,"Error Info"
End Sub

The IP address of the machine, where PostgreSQL is installed, is
200.200.200.1 which i noted from the Mynetwork places ---> properties --->
Local Area Connection ---> TCP/IP Internet Protocol properties.

The operating system installed is Win-2000

But , the above code gives error as [Microsoft][ODBC Driver Manager] Data
Source name not found or default driver not specified.

I guess the value for the SERVER parameter in the above connection string
code will be wrong. Please guide me.

--
G.Pragadheeswaran