To run freeCAD9 in Windows 95, 98, ME, NT, 2000, XP with 128MB or more RAM:

Create a directory, say, C:\freecad9 for the downloads.
Download freecad9.zip
Unzip freecad9.zip, preserving subdirectories, into the same directory.
From Windows Explorer, double click on freecad9.exe to launch the application.

Double clicking in Internet Explorer is not so reliable.

If double clicking doesn't work, create a shortcut containing the full command below:
C:\freecad9\freecad9.exe  C:\freecad9\freecad9.im
The working directory should be C:\freecad9
Then double click the shortcut.
To make freeCAD9 visible in the Start button menu, place the shortcut in a Start Menu folder.