With the new "Open" feature in IV2008 I have noticed that you through this window can edit the files in custom user library folders. This is the folders where the path is set under "Libraries" in the Project file.
The files are still read only when used as part in an assembly, but I see problems as now anybody can modify these library files if they open them by accident through the new "Open" browser window.
Is there any way of having these files "Read Only" also through this new window so you either have to be in a different project or move the library files to a different folder to edit them ??