DataMystic

Please first read this article.

http://en.wikipedia.org/wiki/Dotted_and_dotless_I

Languages such as Turkish and Northern Azeri have both dotted and dotless letter I in their Latin-based alphabets.

This has implications for letter case.
Such alphabets break the familiar case relationship between uppercase I and lowercase i.
Instead they have as a upper and lower case pairs:

• I and ı
  İ and i

For TextPipe filters which have as an option 'use case sensitive', this has practical implications. Have they been thought about?

It has not been addressed.

The character casing routines do take into account the current locale, so if Microsoft has coded this correctly, this will work for a computer in Turkey or Azerbaijan.