I have more than one tool (including RootAlyzer) that reports a number of "Win32App_1" ADS scattered throughout my computer. The size of the ADS appears to invariably be 0 bytes, so they can't be malicious. I have searched through this forum and the web in general, but I am unable to find which program(s) is/are creating them or what they are used for. I have only personally seem them on Windows 10 OS installs. My guess is they are a flag representing something, but I can't find any documentation on what. Some flag for UAC or "requires administrative privileges" type of thing? Anyone have any ideas?

For reference, my system is:
Windows 10 Home
Version 1607
OS Build 14393.447