I tried to connection string to my cml and got this error

This is the response: ‘mongo’ is not recognized as an internal or external command,
operable program or batch file.
The thing I am not understanding is that since my mongo shell is an earlier version (1.6 something) I am not sure that it is running. I replaced my first db string as well where the password was required.
I even tried another version and still got the same response.
Any thoughts?

Do you have mongo.exe under bin?
Try to connect from there
If it works it could be path issue