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Windows Update 3072630 and Custom Action

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  • Windows Update 3072630 and Custom Action

    Windows Update 3072630 and Custom Action
    EDIT: I corrected the title. Should be line above...

    Since July 15th users have complained that our MSI installer can fail (ver 2.1.1011). We see it fails during a Custom Action that launches a DLL that does writing to registry and creates some files.
    We found this
    https://technet.microsoft.com/en-us/.../ms15-074.aspx

    Do you think there is a problem with running Custom Actions after this Windows security fix.
    Thanks
    Last edited by Ulrich; 08-14-2015, 10:31 PM. Reason: fix title

  • #2
    If we disable Windows Update 3072630
    https://support.microsoft.com/en-us/kb/3072630
    the MSI Custom Action Dll runs fine.
    It seems to be a security issue related to the permissions passed to the DLL by the Custom Action.

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    • #3
      As I understand it, you may need to perform the actions differently. If you require writing into the registry, possibly you can use Windows Installer's own functions for that instead of using a DLL.

      Ulrich

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