Background:
I have two virtual drives mapped to folders in the root of my C: drive, using persistent subst (explained in this answer).
Problem:
This answer explains how to make one subst drive use the recycle bin. It works great for one drive, but I can't figure out how to use it for the other one. The OP stated:
… If you have multiple mapped drives, then each should be matched to its own GUID from your favorite GUID generator.
… but I don't know what that means. How does one “match”, get, or set, the GUID for a folder?