I made this app when SmithTech mentioned something on substituting drives. When you run this handy little thing it will substitute or "clone" your current drive letter with another drive letter that you choose. For example, I always substitute for T, so whenever I download something, let say from uTorrent which needs a fixed drive letter, I can point it over to T, and it will be available 95+% of the time. It will have an icon on the system tray to remove the substitution and save your last used letter to a txt file. It starts looking for a free drive letter starting at F to avoid a most false detections of a dvd/cd drive letter.
So, here's the source code and the exe. It is compiled using AutoIt. And a thanks goes out to Ryan for hosting the downloads and at Patrick Patience for the initial hosting. (removed the old links, see below for the new version)
PS. I'm not good at creative names and/or icons, they're just functional.
UPDATE 5/5/07: Changes: Changed the txt to an ini. Instead of saving the last drive used every time it changes it's now your favorite drive letter, in other words it will not change between uses. Also, it has the "silent" option on startup and on exit. If your favorite drive letter is available, it will not prompt you when you make a substitution, or when you exit or remove the substitution it will not show a confirmation message. You can change these settings in the ini file.
Download 2.0 Source included.