[y2ksw]

I've tried now both systems (junction, fsutil) on a clean test environment. Both systems are not cached once, but as if they were separate files. A clean 3.7.0 installation and copy produce each about 2.55 MB of uncompressed eAccelerator cached files on forum home (index.php).

• The junction feature requires to rename the config.php files and is a one-liner.
• The fsutil feature replaces the single files with a hardlink to the common files folder, and allows thus to keep some of the files in their original state. Thus, renaming of config.php and other files are not necessary. fsutil requires an utility to execute recursively. Please allow me to test it a little before releasing
• Both features require to repeat the junction/fsutil calls on each copy. It is not possible to copy and paste those links, and doing so, will just retrieve the original files.