You could do the stunt if you're using W2K / XP. You can mount drives as sudirectories. So you should burn your dvd and then mount it as poser/runtime/libraries with the disk manager after moving the original subdirectory away. It should work...

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

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