Given the following documentation...

/// <summary> /// <b>This is a test</b> /// </summary>

The NDoc preview style will give the error "The given key was not present in the dictionary." This indicates the "unrecognized tag handling" is not functioning properly in NDoc preview style.

This has been verified in VS2010.

NDoc preview style didn't have a default comment/tag handler. The problem was that if Sandcastle tag compatibility was used (includes some HTML tags) NDoc preview style didn't know what to do with it (didn't support any HTML).

Now the HTML will pass through by default.