>>I place this message in the Internet section, altough it's not directly related to the Internet.
>>It's more about modem communications.
>>
>>The problem is as follows.
>>
>>PC1 and PC2 are separated by 800 km.
>>
>>PC1 validates a form and attempts to send the data to PC2.
>>If PC2 is busy, try antoher 4 times
>>IF data transfer succeeded, PC2 sends an acknoldgement to PC1.
>>
>>On PC2 side, PC2 is always listening. If there's a call, modem attends the call,
>>receives the data, sends an acknowledgment and disconnects.
>>
>>I am being asked if I could do that in VFP, and hell, I don't have a clear idea where to start from...
>>
>
>Only part of the problem is handled by VFP; the remainder is a WAN connection issue.
>
>There are a ton of ways to approach this; I'd tend to use RAS to make the remote connection. Essentially, you want to make a network connection via dialup to the remote system. Using RAS makes the connection easy.
>
>RAS has the additional advantage of leveraging the operating system's WAN capabilities. IOW, it doen't matter if it's a dial-up, a dedicated line, or a VPN through the Internet to a machine that has a static IP address. A connection is a connection.
>
>Once the connection is established, there are lots of options - using a Web server that invokes a VFP app and sends back a reply, or DCOM and a Remote Automation Server.
>
>There are lots of approaches available here. If you wanted to use a connectionless service, consider email - you could do this project with Outlook and VFP in collaboration.
>
>>José

Thanks Arnon and Ed. I'll try to make good use of your advices and I'll tell you how it went.

José