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Sorry, but I don't know in this case.
You afraid of losing a license for Win Office 2010?
Maybe you try OpenOffice (with Russian location). if this will not work = you can change version or...

It is sad. really.
Which version of Word do you use? Maybe you can solve this issue by install old version Word (which was installed with Win XP).

Or other way = when I have trouble with Win Word...