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I am trying to check for previous installation of SQL native Client 11, before installation and if found, it needs to be uninstalled. Executing UninstallString in Inno Setup

Things work fine, but I want the Uninstall to be performed unattended. I am getting options Modify,Repair,Remove in the wizard. How can I select Remove by default and proceed with uninstall silently?

Note: It uses MsiExec and /U /SILENT parameters in the Exec function seems to just exit without any errors.

Thanks in advance.

Community
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DeeJay007
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1 Answers1

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Try 

MsiExec.exe /x{FA5C8C7E-3939-4219-A18E-0519832FE06A} /qn

(I found the options on http://www.advancedinstaller.com/user-guide/msiexec.html)

kdev
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  • The official documentation would be more appropriate: https://msdn.microsoft.com/en-us/library/windows/desktop/aa367988.aspx – Martin Prikryl Feb 15 '17 at 06:58