The Options property allows you to fine-tune the checking process. It returns a SpellOptions object that contains the following properties:

• Ignore
  Specifies whether to ignore words in upper-case, mixed-case, words that contain numbers, html tags, urls, etc.
• ActiveSpellingEnabled
  Gets or sets a value indicating whether as-you-type checking is enabled.
  This property is not currently supported in SpellChecker for WPF and Silverlight.
• ShowSuggestionsInContextMenu
  Gets or sets a value indicating whether the a context menu for misspelled words appears when as-you-type checking is enabled.
  This property is not currently supported in SpellChecker for WPF and Silverlight.
• MaxSuggestionsInContextMenu
  Gets or sets the maximum number of suggestions to show in the context menu associated with misspelled words.
  This property is not currently supported in SpellChecker for WPF and Silverlight.
• UnderlineColor
  Gets or sets the color used to underline misspelled words in as-you-type mode.
  This property is not currently supported in the in SpellChecker for WPF and Silverlight.