>I need to acces a VFP database over RAS/ISDN :
>what are the do's and the dont's, what should I take in consideration, what not ?
>
>Any remarks on this topic ? Maybe a lost battle ?

It can work, but performance will disappoint you. Maybe before you try this in an application, you should establish the connection and observe the speed from the command window. Just USEing a table can take thirty seconds. VFP is not really made to do this.