1)   dhtmlxTree - JavaScript Tree Menu 1.3
Cross-browser JavaScript Tree Menu with XML support, rich API and dynamical data loading via Ajax. The tree has checkboxes, context menu, drag-and-drop and editable items. There are CF and JSP tags for dhtmlxTree, as well as ASP.NET custom control.

 2)   Shopping Cart 2.1b
If your products are saved in spreadsheet format, just export them as delimited files and your shopping cart is ready. A simple text file database serves this shopping cart.

 3)   10Tec iGrid.NET 1.70
iGrid.NET is the most flexible, fast and easiest grid for the .NET Framework. You can use iGrid.NET either as a list view substitution or as a full-featured grid control.

 4)   CheckListBox ActiveX Control 2.6 SP5
CheckListBox ActiveX Control provides support for listbox containing checkboxes, In this control, each item's font, color, enabled and checked state can be individually modified.