Spyder is not recognised as an internal command

Question

I have downloaded the new IntelPython and installed the package according to the directions on the page.

So, after I installed the application, I followed these instructions for Windows:

1. Open a terminal or shell and then navigate to the installation folder. This will normally be C:\IntelPython3. Navigate to the Scripts folder, and run activate.
2. After the script activates the root Python environment, Intel Distribution for Python is ready to use.

All good so far, then when I activated the root environment I started installing packages with pip, keras, tensorflow etc. Amongst the packages I installed spyder too.

The issue is that when I am on the environment root I can type python and I start python 3.6 normally where then I can import all the packages that I installed. But, when in the command window (while I am in the root env) I type spyder nothing happens. Instead I get a message that

Spyder is not recognised as an internal command

If I type, within C:\IntelPython3, conda list then I can see spyder but as I said the command doesn't work. I tried to find the spyder.exe within the C:\IntelPython3\Scripts folder but there is not there.

Any suggestions? Thanks

Edit: I can start Jupyter Notebook too from Windows terminal, the only issue is Spyder which is weird.