Nice find.
The article indicates it applies to Vista, and apparently not Win 7 (at least according to the article, which suggests going to a useless Win 7 Tech Support landing page). Oddly, in Win 7, the binding is already set to Left Alt + Shift, which shouldn't conflict, but it apparently does.
There are additional choices for Ctrl + Shift, Not Assigned, and Grave Accent (`). Setting to Not Assigned or Grave Accent allows Ctrl + Shift + 0 to work. Ctrl + Shift does not, of course. But then, reverting back to Left Alt + Shift allows it to work too. Curious. Might the settings not be reflected in the UI properly?