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Dec 15, 2009
07:11 AM
installscript project upgrade behaviour
Hi,
I have an installshield installscript project built using installshield 2009. I inherited the script and have little experience with installshield, but the script is reasonably simple as was created by the project wizard.
The behaviour of the script is such that when I create a new release, say 1.2.0 to 1.3.0 the installer will offer the option of an upgrade. In this instance I do not want the installer to offer the upgrade option, I want it to force the user to first uninstall the old version.
I have searched the tutorials and the forums but do not even know how I might get started on this. How would I go about modifying the behaviour?
I have an installshield installscript project built using installshield 2009. I inherited the script and have little experience with installshield, but the script is reasonably simple as was created by the project wizard.
The behaviour of the script is such that when I create a new release, say 1.2.0 to 1.3.0 the installer will offer the option of an upgrade. In this instance I do not want the installer to offer the upgrade option, I want it to force the user to first uninstall the old version.
I have searched the tutorials and the forums but do not even know how I might get started on this. How would I go about modifying the behaviour?
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Dec 15, 2009
06:41 PM
Perhaps look at the help for IFX_INSTALLED_VERSION, VerProductCompareVersions, and OnUpdateUIBefore for information on detecting and showing the UI (such as an "exit, then uninstall old version" message) for an InstallScript update?
![](/skins/images/8CE4FAD0DE6F3A6F9D0567434D2D2DAE/responsive_peak/images/icon_anonymous_message.png)