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Editorial Team
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Asked: 2026-05-27T19:05:46+00:00

<Custom Action=SetARPINSTALLLOCATION After=InstallValidate>NOT (REMOVE=ALL or REMOVE=ProgramFiles)</Custom> I have this custom action called in InstallSequence,

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<Custom Action="SetARPINSTALLLOCATION" After="InstallValidate">NOT (REMOVE="ALL" or REMOVE="ProgramFiles")</Custom>

I have this custom action called in InstallSequence, action that must populate in upgrade INSTALLDIR from registry, and this custom action is called in fresh install also.

In majority of cases this action, for fresh install, return one location from local machine, and the setup works without issues, but on a customer machine the value returned is \SomeDir\ and the setup faills.

How could I use this custom action to work correctly?

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1 Answer

  1. Editorial Team

    After some analysis I found that the functions works correctly, but the system contained an invalid registry entry, and for that value the result of SetARPINSTALLLOCATION was a wrong value.

    The wrong value in registry was generated by the existence of record InstallLocation directly on uninstall registry key, without any guid like parent.

    Thanks.

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