Is there a way to repackage an app so that it will uninstall the previous version of the app first?

I have read through some of the discussion on Prerequisites, but I have not see if you can have an unistall be a prerequisite.

I am fairly new to this, so forgive me if this is a dumb question. If there are some resources or websites you might recommend, let me know.

Thanks,
James
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if your using wps then open your project then at the right pane choose Upgrades on the Distribution section.. browse to your previuos msi.. there's an option there if you want to uninstall previuos version or not.. you could also do some research on Upgrade table..
Answered 07/08/2005 by: rikx2
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What is wps? I am using AdminStudio (the SMS version)...
Answered 07/08/2005 by: wickett
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Upgrades section... Didn't I just... No...
This is like deja vous all over again, except I'm the other guy! [:D]

Good thing it's Friday. I need rest.
Answered 07/08/2005 by: VikingLoki
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ORIGINAL: VikingLoki

Upgrades section... Didn't I just... No...
This is like deja vous all over again, except I'm the other guy! [:D]

Good thing it's Friday. I need rest.


hahah.. i got that one from you and have been testing since 1am (i'm in Manila, Philippines by the way) and it has been going exactly as advertised [8D]
Answered 07/08/2005 by: rikx2
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So I am not using wise... I figured out what WPS was... Anyways, any other thoughts on how I can force an uninstall using AdminStudio as the MSI packager?

Best.
James
Answered 07/08/2005 by: wickett
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as said.. research on the upgrade table.. the software is different but the action should be the same.. i have an installshield studio sitting somewhere.. want to try and find out
Answered 07/08/2005 by: rikx2
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ORIGINAL: VikingLoki

Upgrades section... Didn't I just... No...
This is like deja vous all over again, except I'm the other guy! [:D]

Good thing it's Friday. I need rest.


lol poor Viking :)

Seems like we may need an Upgrade Section sticky to save some typing.
Answered 07/08/2005 by: MSIMaker
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Why not use a VB script or custom action to uninstall it. If you are deploying via sms use the run this package first before you install the new package.
Answered 07/09/2005 by: UcMerrill
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ORIGINAL: UcMerrill

Why not use a VB script or custom action to uninstall it. If you are deploying via sms use the run this package first before you install the new package.


I'm against using scripts to unistall apps if they have an uninstall string or are msi's which can be uninstalled correctly.

A VB script wont give you the error detection to tell you if the app is actually uninstalled or not.....better to use the native uninstall to ensure consistency.
Answered 07/09/2005 by: MSIMaker
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