1)   Explorer Context Menu Platinum (.Net component) 4.19
Add custom items to Explorer shell context menu easily with Context Menu Platinum. Support .Net, C#, VB, VB .Net. Work on any Windows computer, including Windows XP and Vista. Easy to start (just install), easy to add your menu items - easy to deploy

 2)   GSA Autostart Cleaner 2.33
Search all places in your OS where applications leave their autostart entries and context menus. Then you can choose if one is really required or if it can be removed. This speeds up the whole boot process and resulting in a more stable system.

 3)   Windows Explorer Shell Context Menu (.NET Component) 7.14
Add items to Windows Explorer Context Menu - Easily? Add any entries to shell context menu? Then you need component for custom item appending to Win Explorer shell context menu. More info and free Context Menu Component download at ContextMenu.net

 4)   BUY.COM Context Menu 1.0.1
Context Menu for Buy.Com site can be used as good alternative to basic search plugin. It has a number of advantages which can be very useful for you.