What is the command line for Indexing Options?

Type Windows+R, the then run the command:

rundll32.exe shell32.dll,Control_RunDLL srchadmin.dll

I have only tried this on Windows Vista.

control.exe srchadmin.dll opens the "Indexing Options" window in Windows 7 and Windows 10 (so probably also in Win 8).

Outside of a need to open it programmatically, the quickest way to open Indexing Options is:

• Hit the Windows Key
• Type index and wait a split-second for Indexing Options to be highlighted
• Hit Enter

:-)