Auto change windows crosshair on rust startup

RustCursorPath := "E:\_After_Windows_Reinstall\rust_crosshair2.cur"
DefaultCursorPath := "%SYSTEMROOT%\Cursors\aero_arrow.cur"

UpdateCursor()
{
    SPI_SETCURSORS := 0x57
    result := DllCall("SystemParametersInfo", "UInt", SPI_SETCURSORS, "UInt", 0, "UInt", 0, "UInt", 0)
    if (result != 1)
    {
        MsgBox Error Level: %ErrorLevel% `nLast error: %A_LastError%`nresult: %result%
    }
}

Loop
{
    Process, Exist, RustClient.exe
    if (%ErrorLevel% != 0)
    {
        RegWrite, REG_EXPAND_SZ, HKEY_CURRENT_USER\Control Panel\Cursors, Arrow, %RustCursorPath%
        UpdateCursor()

        Process, WaitClose, RustClient.exe
        if (%ErrorLevel% = 0)
        {
            RegWrite, REG_EXPAND_SZ, HKEY_CURRENT_USER\Control Panel\Cursors, Arrow, %DefaultCursorPath%
            UpdateCursor()
        }
    }
    Sleep, 5000
}