http://www.slipstick.com/how-to-outlook/using-skydrive-or-cloud-storage-for-pst-files/ https://en.wikipedia.org/wiki/File_locking#In_Microsoft_Windows
http:// www.slipstick. com/how- to-outlook/ using-skydrive- or-cloud- storage- for-pst- files/ /en.wikipedia. org/wiki/ File_locking# In_Microsoft_ Windows
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