Macropod did not pretend that he had a solution. This question was not marked as "Solved." His response remains true.

The solution you offer doesn't change this behavior, either. It does solve the selection of the paragraph mark at the end of a sentence but when you double-click on a word to select it, Word will still select the space following as a part of the word. As indicated, you can use the Shift+LeftArrow to unselect.

The behavior of Click-Drag-Select remains the same.

It may behave differently in Word for the Macintosh; I have not used that recently.