Description:
These files are part of the example of Alternate Data Streams (ADS) of the Microsoft NTFS file system.
Such streams can be used to hide data, which is very difficult to detect and manipulate.
Content:
LADS ("lads.exe") - Software to list ADS (Readme, Homepage)
Calculator ("calc.exe") - The standard Windows calculator program. Used for embedding it into an ADS.
Notepad ("notepad.exe") - The standard Windows text editor. Used as a "host".