1. Microsoft ActiveSync 4.5 Beta 2 Released: 19 Sep 2006 (7 years 11 months ago) Technical Details | Change Log
  2. Microsoft ActiveSync 4.2 Released: 06 Jul 2006 (8 years 1 month ago) Technical Details | Change Log
  3. Microsoft ActiveSync 4.1 Released: 20 Nov 2005 (8 years 8 months ago) Technical Details | Change Log
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