1721 Error Installshield
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Installshield Error 1721 Vista
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Error 1721 Windows 10
vote 3 down vote favorite 1 I'm getting an error 1721 on Windows 8 when my basic MSI installation tries to run a custom action executable, while on WindowsXP and Windows7 it is run as I have set it to from InstallShield. The executable is stored in the binary table. Why is this happening? windows-8 windows-installer installshield custom-action installshield-2010 share|improve this question edited Jun 20 '13 at 8:22 Peter
Error 1721 Fix
Mortensen 10.2k1369107 asked Dec 18 '12 at 10:40 Pantelis 1,38531328 Typically the verbose MSI log will give you a clearer understanding of why error 1721 is shown. Likely candidates include missing dependencies and required elevation. –Michael Urman Dec 18 '12 at 15:57 1 It's probably caused because I have set the executable to always run as administrator in the app.manifest. The thing is that I need to move some files from a previous version installation of the software in Program Files so I need the admin permissions to do so. When I'm not setting the executable to run as administrator, the error doesn't come up, but I'm getting an UnauthorizedAccessException when trying to move the files. –Pantelis Dec 19 '12 at 9:00 add a comment| 3 Answers 3 active oldest votes up vote 0 down vote Old post I know (I've only recently jumped back on StackOverflow). This would appear to initially be architecture related. Ensure for all parts of the custom action, programs, paths and file names etc are valid. Also as mentioned, always apply installers via the administrator account. If your're calling an EXE stored in the binary table, ensure you're referencing it correctly as well. Often the windows installer unpa
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