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Alternatively is it possible to manually update the built in progress bar? Basically I have 2 MSIs included and using Inno Setup as a bootstrapper, and depending on user input one or both of the MSIs are to be installed. I have something working using Exec statements in CurStepChanged but it doesn't update the progress bar as the files are extracted and it looks like the installer is stalled. I guess the end result is I want some progress bar updates while the files are extracted to the temp folder. The following is my current code: procedure CurStepChanged(CurStep: TSetupStep); var ResultCode: Integer; begin if(CurStep = ssInstall) then begin if(InstallServer) then begin ExtractTemporaryFile('ServerSetup.msi'); Exec('msiexec',ExpandConstant('/i "{tmp}\ServerSetup.msi" /qb INSTALLDIR="{code:GetInstallPath}\Server\" ALLUSERS=2'),'', SW_SHOW, ewWaitUntilTerminated, ResultCode); end; if(InstallClient) then begin ExtractTemporaryFile('ClientSetup.msi'); Exec('msiexec',ExpandConstant('/i "{tmp}\ClientSetup.msi" /qb INSTALLDIR="{code:GetInstallPath}\Client\" ALLUSERS=2'),'', SW_SHOW, ewWaitUntilTerminated, ResultCode); end; end; end;

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