When you unzip this file, the three VIs in it replace the 3 VIs located at
<LabVIEW 2010>\resource\plugins\NIIconEditor\Support
These are identical to the existing VIs but with the passwords removed. These three VIs are used as part of editing the icons for libraries and classes.
Kudos Steven!
I've created a package so that users can install this into the LabVIEW folders easily using VIPM.
The package is available on LAVA.
See here for the original thread that contains links to download the package.
Cheers
-JG