If you are using the Unicode NSIS installer for your project, please let me know. Here are some confirmed projects that make use of the Unicode NSIS installer:

Winamp (5.53 and onward).

MozillaBuild 1.2 includes Unicode NSIS as part of its distribution. As of January 14, 2009, it's been confirmed that the above projects (Firefox, Thunderbird, Sunbird, and SeaMonkey) will be using Unicode NSIS for their Windows installers.

FileZilla -- The Free FTP Solution.

OpenOffice.org (3.0)

Portable Apps

flickr uploader

Google Picasa (3.5 and onward)

ComunIP Software

alot.com

WinSnap

Gogrok