Hi Benn and Kolya,

The fact that UDP works between two IP addresses is not very relevant for your TCP code.

Using TCP you:
1. must decide the MODE as 'blocking', or 'non-blocking'
2. need a connection between the two IP addresses

If you choose 'blocking' then your winsock function calls will work the same as in VFP i.e. the program stops until the function returns.

In 'non-blocking' mode when you call connect it will imediatly return, regardless of the succes or failure. So, in 'non-blocking' mode you need a loop or a timer, after calling connect, to check the status of the socket or error codes. The same is true for any function call, like send or receive.

HTH