Spell checker update 2.1: a few bug fixes and couple of new features
Bug fixes:
- <param>Text</param> was not handled correctly.
- Comments in <% %> blocks were not included in spell checking.
- Spell checking terminated prematurely under certain conditions after encountering <% %> block.
- REM VB comments were not always handled correctly.
- Vista setup issues fixed (hopefully)
New features:
- It is now possible to add word to "ignore" list. The list is global and is stored as a text file.
- You can also add words to the Office active custom dictionary.

More details here
Visual Studio 2005 Add-in download
Visual Studio 2008 Add-in download