Some links from the Code Project:

ASP Code Analyzer - A simple tool to find unused subs, functions and variables in your ASP code.

DHTML Tree View of Arbitrary Depth using AJAX

Automated Document conversion with OpenOffice

A word-wise Html text compare and merge engine - C#.net implementation of html text compare and merge engine based on similar algorithm as unix diff

.NET Scheduled Timer - A timer that easily supports absolute schedules like run at 4:00 AM every day or at 5:00 PM on Fridays.

A Fast CSV Reader - A reader that provides fast, non-cached, forward-only access to CSV data.