Documentation "bug"
In Appendix C of NSIS 2 beta 3 documentation appears the following example of how to write registry values into the registry to allow a program to appear in the Add/Remove Programs dialog of Windows:
WriteRegStr HKLM "Software/Microsoft/Windows/CurrentVersion/Uninstall/Product" "DisplayName" "Application Name"

The problem is that the slashes are forward slashes and not back-slashes, as they should be.

Not really a bug, but still confusing.

(Also, a note that you have to remove that key on uninstall yourself would have been nice, too)

gnobal.