"Make Desktop Shortcut" fails on Windows

[csatt]

The README files in the python and python3 directories are missing one package that needs to be installed on Windows: "pywin32"

If it is not installed, the "Make Desktop Shortcut" button generates an error dialog saying "ERROR: could not create shortcut"

In addition to the README files needing to be corrected, this error message provides no clue as to what the problem is. The failure to install pywin32 should cause "import win32com.client" to fail with an ImportError exception. But currently, it is protected with try/except so it doesn't fail on non-Windows machines. Instead, the import should only be attempted if sys.platform is "win32" and the try/except should be removed.