Microsoft Windows never stops surprising me. The subst command was always pain in the a… back, and the trend seems to continue. I am using a substed drive to create the same environment for projects across different machines, which is named D: in this case. Everything went smooth until today when I approached the computer with a USB stick. System happily recognizes the device and says that you can go ahead and use it. Except… you can’t. The “Removable device” becomes listed as D:. But, when you open it, all you can see is the content of the substed folder. You have to delete the substitution point until it allows you to see what is attached to USB. Who would guess?