>One of our infrastructure on a client site includes a .NET Web Service which uses VFP and WWC for the data tier. Today, a top IT in regards to the management of that infrastructure says that this solution is not scalable. They said to us that a global .NET solution is scalable. How do we react to that?

Hi Michel.

Scalable: => if you scale HW ( add CPUs) then you scale SW ( increase user/resultTime ratio ) without rewrite the application.

.NET allow multithreading processing,
therefore, if the application's code comes paralleled a lot,
you do not have crews in order to answer.

Another example:
new ADO.NET 2.0 support new SQL 2005 MARS ( with a single connection you can download multiple concurrent datasets ),
this can scale the application because with a single connection you can read more recordsets.

BUT, if who writes the .NET application it is not in a position to taking advantage of these characteristics,
then to speak about scalability does not have sense.

Fabio