– Some runtimes inject drivers; AV may block them.
There are several reasons why the MSM download tool may display the "CMDongle Runtime System is not installed" error message. Some of the possible causes include:
Some MSM tools are hardcoded to look for a specific version of the Cmdongle runtime (e.g., v2.5, v3.0). If you have the wrong runtime version, the error persists. – Some runtimes inject drivers; AV may block them
Download and install the drivers. Open Windows Device Manager ( devmgmt.msc ).
The “exclusive” keyword hints at low-level hardware access. Antivirus software often quarantines or blocks the Cmdongle driver because it attempts to communicate directly with USB ports or emulate a hardware dongle. This results in the runtime “not being installed” from the tool’s perspective. If you have the wrong runtime version, the error persists
: The tool searches your operating system for a running CodeMeter service.
Follow the on-screen prompts, leaving all default installation paths unchanged. Restart your computer after the installation completes. 2. Copy the "cmdongle" DLL Files Preemptively – Some runtimes inject drivers
To fix this, you must install the CodeMeter runtime and manually import a specific license file. Download and Install CodeMeter Download the latest CodeMeter Runtime Kit official CodeMeter website
– Right-click the tool → Run as administrator .