Hi,
You could

If you are using VFP as data store

1. implement web services that allow you to access and update data thru internet. Check out VFP 7/8 help file or white papers in www.west-wind.com for more info.

2. check out http://www.west-wind.com/presentations/foxWebDataService/foxwebdataservice.asp which allow you access/update data thru internet without using SOAP protocol.

SQL server as data store

Just specified IP address of your server in connection string, If i am not mistaken.

IMO, if you access/update data thru internet real time, your application may run a bit slow unless you have very fast and reliable connection. You could try to save your data locally, then replicate them to server in off peak hour.

HTH