When I installed as a portable version, but left the old user config file so the add ons etc would be loaded I got this error on running either the installer or the finished portable version.
ERROR - globalPluginHandler.listPlugins (12:03:44.404):
Error importing global plugin goldenCursor
Traceback (most recent call last):
File "globalPluginHandler.pyc", line 22, in listPlugins
File "C:\Users\Brian\AppData\Roaming\nvda\addons\goldenCursor\globalPlugins\goldenCursor.py", line 24, in
ImportError: No module named win32api

Seems to be rather a vital omission??