Today we posted some APIs that convert to & from IDN Punycode, provide some mitigation functionality for those APIs, and provide Unicode Normalization support.

http://www.microsoft.com/downloads/details.aspx?FamilyId=E289BB2C-D111-4331-8FB2-CC6C5A026C93&displaylang=en

See the documentation included with the download for details, but this could help apps that need IDN or normalization functionality.  Managed apps should of course use the .Net v2.0 String.Normalize() and IdnMapping classes :-)

5 Jan 2006 - See http://blogs.msdn.com/shawnste/archive/2006/01/05/509746.aspx for notes on loading the dll.