If you work on Windows long enough, two recurring annoyances come up:
- Deep folder paths you have to click through over and over (
D:\Projects\client-x\modules\src\components\); - Cloud drives you can only reach through a client or a web UI, never directly from the command line or your editor.
Windows ships with subst, which maps a folder to a drive letter, but it dies on reboot and has no GUI. Here are the two tools I use to solve these for good.
ScsSubst — any local folder becomes a drive letter
ScsSubst is a lightweight Windows tool that maps any folder to a drive letter:
- No file copies — it just gives the existing folder a drive-letter entry point;
- No extra disk space, read/write speed is the same as the source folder;
- Persistent across reboots, mounts on login;
- Available directly in Explorer, Command Prompt, and any tool that reads drive letters.
I map D:\Work\projects to Z: and E:\Data\archive to Y:. cd Z: beats typing a long path every time. It is $9.99 as a one-time purchase — a lifetime license, not a subscription — with a free trial.
ScsDrive — cloud drives and WebDAV become a local drive
If you want OneDrive, Aliyun Drive, WebDAV, or S3 mounted as a local drive letter, that is what ScsDrive does:
- Supports WebDAV/S3 and major cloud providers;
- Local caching so large files don't stutter, auto-reconnect on drop;
- Mounts on login and behaves like a local disk.
It is $5.50 as a one-time purchase — a lifetime license, not a subscription — plus a 7-day full-feature trial.
Which one do you need?
- Just want faster access to deep local folders → ScsSubst;
- Want cloud storage mounted locally → ScsDrive;
- Use both and your drive-letter layout stays tidy.
Full disclosure: I work on ScsSubst and ScsDrive, and everything above comes from using them daily.

