It was a custom reporting application. The user enters parameters into a Web Form, then ASP.NET fires off a series of SQL Server stored procedures. A background process runs MS Access to generate Word .RTF report files, and ASP.NET provides the user with links to the newly created files. Not a huge and complex enterprise application by any means, but there were plenty of tricks to work around.
ASP.NET was a big help, largely because of the vastly superior Visual Studio IDE. ASP programming always felt like groping in the dark. Anyone who has done a lot of ASP development will really appreciate ASP.NET.
It was a custom reporting application. Cool. It's a good, solid app, sounds like.
May I ask if you had any issues porting the existing ASP code? And how much was written from scratch, and how much was migrated code?