Problems installing IMSL Library for PyNL

I have windows 7
All PyNL prerequisites are installed and working properly (I have Python 2.7.11, pip version 9.0.1, NumPy 1.11.3, SciPy 0.18.1)
I Downloaded the installation file to a temporary folder
When I Open a command prompt and enter:

pip install
I get the following :

"Could not find a version that satisfies the requirement downloaded
No matching distribution found for downloaded"

When I Open a command prompt and enter:

pip install imsl-1.0_eval-cp27-none-win_amd64.whl

I get the following :

"Requirement 'imsl-1.0_eval-cp27-none-win_amd64.whl' looks like a filename, but the file does
not exist
imsl-1.0_eval-cp27-none-win_amd64.whl is not a supported wheel on this platform."

When I execute the following statements in the Python interpreter:

>>> import imsl.timeseries.garch as garch
I get
"Traceback in <> --> 1 import
imsl.timeseries.garch as garch
Import Error: No module named imsl.timeseries.garch"

Can you help ?

EDIT

System properties : "Windows 7 64-bit OS with an Intel(R) Xeon(R) CPU Processor"

After running pip from corresponding temporary folder the only error message I get is
"imsl-1.0_eval-cp27-none-win_amd64.whl is not a supported wheel on this platform."

I'm still confused about what I'm doing wrong