PgOleDb requires a PQLib of version 7.4 or up and it also requires a backend of version 7.4 or up. Timestamps are only guarenteed to work with backends of version 8.0 and up.

Provider=PostgreSQL OLE DB Provider;Data Source=myServerAddress;location=myDataBase;User ID=myUsername;password=myPassword;timeout=1000;

Other valid Provider values is "PostgreSQL" and "PostgreSQL.1"

Standard alternative

Some reported problems with the above one. Try removing the timeout parameter to make it work.

Provider=PostgreSQL OLE DB Provider;Data Source=myServerAddress;location=myDataBase;User ID=myUsername;password=myPassword;