Node.script on Windows10 ?

We did a try of Node.script with Max8.5.3 on Windows10 which is very strange : the help patch for node.script works, but the copy of the demo script (maxnode-basic.js) into new node.script object (with a different pathname into the Max search path, the help being closed) returns: 'Node script not ready can't handle message..'. .

We desinstalled all other node instances from the OS to be sure that Max is calling its own, installed from node.script object npm path and max-api (succesfully), got the same error. Then we re-installed the packages manually from a shell by running npm install directly from the Max app's directory\ Node for Max\modules... with same result. I may mention that after message 'script start', the message 'script npm --version' returns the following error (into the node.script debug tool) : 'Cannot read property 'once' of null'. All temporay dicts output, when exist, tell only that the command is 'completed'.