There are several software inventory scripts posted that would do it for you or you could easily create a small script to get just the WinWord version. Pull the location from "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths" and the use GetFileVersion(). Write the results to a file an Bob's your uncle.
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Give a man a fish and he will be back for more. Slap him with a fish and he will go away forever.