The most direct fix is to install the middleware that the MSM tool is looking for.
The Infinity CM2 dongle requires specific drivers to function. If you have other flashing tools installed—such as Miracle Box, Volcano Box, or older versions of Infinity-Box—their drivers may conflict with the CM2 runtime drivers. This is especially common with smart-card drivers (like Sentinel or Aladdin drivers) that attempt to claim the USB port before the CM2 driver can. msm download tool cmdongle runtime system is not installed