Winsock : Any ideas ?

[Zax]

I have a Client/Server application that communicates using the winsock control to communicate. However I have a requirement to run the system locally ie. Client & Server on the same machine. This works perfectly on networked/internet enabled PC's but if the machine does not have an active Modem or Network card I get errors like:
Error Code 10050 - Network Subsystem Failed
Error Code 10047 - Address Family not Supported

These I think are caused because TCP/IP isn't installed or the process is not active.
Does anyone know if Sockets can work locally with no external connections ? Or can TCP/IP be set to look back on itself?

Thanks,

Zax

[honeybee]

I have used a client-server Winsock app on a single machine, but one of the machines I used had an internal modem, while the other had a network card.

Could this be of any help?

[kurtsimons]

I assume you used the address 127.0.0.1

[Zax]

I tried 127.0.0.1 and localhost but no luck.

[kurtsimons]

Is TCP/IP installed?
Can you Ping 127.0.0.1

if so try to bind to a port on your computer and see if that causes an error (happened to me once)

[Zax]

The trouble is there is no device (modem/network card) so TCP/IP isn't started.
I can install the TCP/IP protocol using a dummy device but it doesn't function and I get :

System Error &H8007001F ....
A device attached to the system is not functioning.

Do I need some sort of device to get TCP/IP running ?
Do I need a device to use the winsock control ?

[JoshT]

I think if you would install the "Loopback Adapter" like when you just have a modem it would solve your problems. And you definately need the TCP/IP protocol installed.

Hope that helps,
Josh