I need to get authentication credentials from the users within a Windows script but the classic \"first Google result\" approach:
SET /P USR=Username:
SET /
I assume that you want no echo of the password on the screen.
If a pop-up window is ok for you, you could use e.g. VBScript to show an IE window displaying a password field. Here's an example.
As an alternative you could call your script from an HTA (HTML Application) file (see Introduction to HTML Applications (HTAs).
Regards, divo