WINSOCK Error: Host not found.
The name you have used is not an official hostname or alias. Any of the WinSock name resolution functions can fail with this error. The WinSock API does not provide any way to select specific name resolution protocols, server address, or record type. Most WinSock implementations use DNS (Domain Name System) for hostname to address resolution, although a few use Network Information System (NIS). Assuming you have a name server configured instead of or as well as a host table, a hostname resolution request causes a WinSock DLL to send a DNS "A" record query (address query) to the configured DNS server(s). If you have more than one server configured, the hostname query fails only after the WinSock DLL has queried all servers.
Check that you have a name server(s) and/or host table configured. If you are using a name server, use ping to check that the server host(s) are available. Check that the name resolution server application is running by trying to resolve another hostname you know should work. If you are using a host table exclusively, add the destination hostname and address to the table.