Occasionally, the IntelliSense feature in Microsoft Visual Studio .NET will not work with an application built with Iron Speed Designer. This is due to a caching bug in Microsoft Visual Studio. This can be fixed by deleting the Microsoft Visual Studio cache file:
C:\Documents and Settings\Administrator\VSWebCache\\
Working with Microsoft Visual Studio .NET
Opening an Application in Visual Studio .NET
Custom Controls Created by Iron Speed Designer
Enabling and Disabling Strict Compilation Mode
Compiling Applications in Debug Mode
Editing ASPX Pages in Visual Studio .NET