I just tested with junctions as well. Apache reads them just fine. Use this command, after
downloading junction.exe from Microsoft.
Code:
junction -s newvbdir oldvbdir
newvbdir will now be a symlink to oldvbdir, including all files and directories recursively. It seems to work the same way as a hard link, if you change the contents of either file it changes the other.
The bottom line is both junctions and hard links should be tested to see if the opcode caching only caches one copy of the file or multiple copies.