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How to create an upgrade for my existing program install using InstallShield 12

Last Modified: 2013-11-26
I have created an installer for my vb.net program using installshield 12. All goes well, drivers, program etc installs without issue. As this app is in development there are going to be many changes and i dont want my testers to have to uninstall the program before installing each new version, i want it to update. The documentation i have found through help and its forums are weak so i was wondering if anyone had access to a tutorial, or had figured out how to do this and can give me detailed steps to crteate.

The installer is InstallShield V12 and its a VB.NET (windows forms) app for windows 2K, XP, Vista

Thanks very much for your help.
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EE Admin
If it's an InstallScript Setup (but I guess this is the same for all Setup types) just increase the version number in the InstallShield project settings and create a new build. If the Setup detects an existing (older) version at setup-time, the Setup will allow the user to invoke the update routine.

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