Why can I not install PassSync 1.1.5 on Windows 2003 r2?

Solution In Progress - Updated -

Environment

  • Red Hat Directory Server 8.2+
  • Red Hat Directory Server 9.1+
  • Windows 2003 r2
    • Active Directory
  • PassSync (WinSync) Installer 1.1.5 or above

Issue

  • When installing Red Hat PassSync 1.1.5 on Windows 2003 r2 the following error is received:
The installation package cannot be installed by the Windows Installer service. 
You must install a Windows service pack that contains a newer version of the Windows Installer Service. 

Resolution

  • Ensure that the Windows Installer for Windows Server 2003 R2 is at least version 4.5.
    • The default is 3.0
    • PassSync cannot be installed if the version is < 4.5

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