You've used the location of the shortcut to IE, not the executable program. That's this file: "C:\Program Files\Internet Explorer\iexplore.exe" (Well, at least on my Win10 box)
The shortcut has a .lnk extension (hidden always by Windows Explorer), so .exe won't get you anywhere.
How I got there?
- Right-click the shortcut in the start menu
- Choose "Open file location"
- Right-click the Internet Explorer shortcut and choose Properties
- Get the value in the Target field (selected by default)