Wow that was amazingly fast, thanks!!
I ensured I ran the executable in an elevated fashion (since Vista's shield symbol was not on the EXE's icon) to ensure all would be well.
The Integrity Level context menu entry appears fine for files but is absent for folders.
When I try and alter an integrity level, it doesn't seem to set it, as if I open the dialog again the setting has reverted. My account does have the User Privilege that apparently is required to do this (maybe that is something that the app could add if required - perhaps dynamically?) and indeed I can set privilege levels from the command line using chml.exe.
When setting levels on a folder, it would be helpful to have a checkbox as to whether this setting should be inheritable to child objects or not as that functionality is provided by chml. I presume that setting the inherit flag won't propagate to existing child objects - perhaps a checkbox to do this?
Thanks again for this!