In any version of Windows I have used so far (Xp, Vista, 7, 8) and all versions of the
MSPY IME (RTM versions and the 2010 version)
There is this annoying bug that you cannot change or disable the hotkey for Chinese shape troggle (normal to double spaced chars).
The default is Shift+Space, and cannot be changed from the language input settings pane in the control panel.
Here are a couple screenshots to show the problem:
After that press Change Key Sequence
This dialog will appear:
Disabling it, has no effect, i.e. Windows will ignore the setting. You will notice I already managed to change the sequence to Shift-None by using the registry, but Windows still uses Shift+Space for shape toggle, which is really annoying when you type Chinese faster (especially if you want to switch between English and Chinese).
Now after you changed or deleted the key with the dialogue, the setting will not be persistent with hitting Apply. Changing the corresponding registry value and rebooting also doesn't help, as the following screenshot demonstrates:
I hope anyone has experience with this problem.