* Created new Release_Win7_Sync configuration for
  Processlib/LimaCore/PCO VS projects and solution.
* They define _WIN32_WINNT as 0x600 (_WIN32_WINNT_LONGHORN)
  instead of 0x502 (_WIN32_WINNT_WS03: WinXP SP2),
  which implies PTHREAD_WIN_XP_SYNC (XP API)