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bcasero
Pilgrim

Update package

We're using Installshield 2015 express to deploy an application.
Everything works fine except when we have to update an existing deployed installation. Every time we want to update appears the message that warns about the product is yet installed and it must be uninstalled first.
What we need is to update the installation without uninstalling the product.

We have tried the following:

1. change the upgrade code with no result (we cannot change the product code because then we have 2 installed products)
2. change version with major/minor changes with no result (ie: 1.0 to 1.1 or 2.0). always appears the warning message and we cannot update.
3. create upgrade paths (setting max and min version and setting the Icnore Remove Failure to yes) with no result: we cannot avoid the warning message.

My questions are:
1. Can this version of Installshield (2015 Express) does what we need (upgrade packages)
2. If No then what version we need?
3. If Yes then what is the right way to accomplish that using the express edition.

Comments: the full installation package is about 200Mb. We need to make smaller upgrade packages (about 20Mb) with changing exe and dll only.

I really appreciate any help you can provide.
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hidenori
Pilgrim

Re: Update package

InstallShield Express Edition includes support for creating a minor upgrade packaged as a QuickPatch project. Consult the following help topics for more details.

Upgrades Overview
Determining the Best Upgrade Solution
Packaging Options for Upgrades
Working with Upgrades and QuickPatch Projects
Patching Considerations
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