On Windows, you may have to invoke the ``pyvenv`` script as follows, if you
don't have the relevant PATH and PATHEXT settings::
- c:\Temp>c:\Python33\python c:\Python33\Tools\Scripts\pyvenv.py myenv
- c:\Temp>c:\Python34\python c:\Python34\Tools\Scripts\pyvenv.py myenv
++ c:\Temp>c:\Python35\python c:\Python35\Tools\Scripts\pyvenv.py myenv
or equivalently::
- c:\Temp>c:\Python33\python -m venv myenv
- c:\Temp>c:\Python34\python -m venv myenv
++ c:\Temp>c:\Python35\python -m venv myenv
The command, if run with ``-h``, will show the available options::