Existing users, 
This programm has a VERY IMPORTANT bug, which can lead to complete reinstalling the OS - it changes the default executable file permissions for all files it patches
Before:
-rwxr-xr-x /Applications/iMovie HD.app/Contents/MacOS/iMovie HD
After:
-rwxr-xr-- /Applications/iMovie HD.app/Contents/MacOS/iMovie HD
Here it is clear, that if you are admin user, you will be fine, but all non-privileged users will not be able to run it.
!!!!!!!!!!!!! And that happens for ALL files/libraries.
Monolingual
Remove unwanted language resources from OS X and installed apps.
Version: 1.4.1
IMPORTANT !!! bug - it changes file permissions
Feedback Type: Commentary
Contributed by: mvm1 Sunday, August 06 2006 @ 02:43 PM PDT
Product Platform: MacOSX
Used Product For: Less than a month
Recommend Product: NO
Comments
IMPORTANT !!! bug - it changes file permissions - Mark Douma
As far as I recall, I've never seen the behavior that you're seeing, regarding the changed permissions. Well, actually, I've never used the Trim Architecture feature, for that matter. If you're only removing languages, I doubt you'll see this behavior, since Mach-O executables are never touched. Running the Trim Architecture feature could possibly alter the permissions, though this feature can do a whole lot worse than that. (That's why I wouldn't bother running it) ;-).Tuesday, August 08 2006 @ 07:13 AM PDT
IMPORTANT !!! bug - it changes file permissions - jmom
Run Disk Utility and repair file permissions after running Monolingual, as you should after every software install anyway.Wednesday, August 09 2006 @ 03:50 AM PDT
IMPORTANT !!! bug - it changes file permissions - nightwol
Presumably running "Fix Permissions" aferwards will correct this.Reply to This
Monday, August 07 2006 @ 02:28 AM PDT