When trying to start IISAdmin, I get

---------------------------
Services
---------------------------
Windows could not start the IIS Admin Service on Local Computer. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code -2147417831.
---------------------------
OK  
---------------------------

Event log contains

Description:
The IIS Admin Service service terminated with service-specific error 2147549465 (0x80010119).

Killed inetinfo.exe with task manager

OK.