TierDeveloper is an O/R mapping and code generation tool that
simplifies the complexities of N-Tier Applications and lets you
develop real-life applications in matter of days instead of months.
TierDeveloper Windows Edition lets you map middle-tier data objects
against database tables and generate fully functional MTS COM/COM+
components using VB or C# language. It helps you accelerate N-tier
enterprise application development against MS SQL Server, Oracle and
IBM DB2 database servers. It also generates an ASP Test Web
application.

So try www.alachisoft.com