Dear folks,
i am using instalshield 12 premier edition basic msi setups..
Here i am facing problem of uninstall a previous version of a application during installing latest application.How to automatically uninstall a previous version of a application during installing.
please could help me regarding this one...
thanks in advance.

Cheers Babu
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AS EVER, you need to do some research first before posting, specifically about Upgrades, using the Upgrade table and use of the RemoveExistingProducts Custom Action.
Answered 08/04/2008 by: VBScab
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thnaks scab,
i have done some research on upgrades and RemoveExistingProducts Custom Action.but it was not useful for me.
Answered 08/06/2008 by: axsysbabu
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I can't speak for others but I'm willing to bet they're like me, in that they simply don't have the time to provide you with what you seem to want: a step-by-step guide on how to do this. If your research so far hasn't helped, you need to do some more.
Answered 08/06/2008 by: VBScab
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Dear babu,

Even i would support VBScab on this. Its more of reading that you need to do on this. Infact we are helping you out with this. If you lay your hands on msi.chm file, its the best. I can provide you the help file if you need it.

Ok, now let me give you a hint... make sure the RemoveExistingProducts standard action is after InstallValidate... rest is your research!!

I am not hungry for points by telling you the steps, but would really like you to understand the ways behind it... however, if urgency creeps up, then do let me know... i can understand what critical delivery can mean ;-)

Regards,
Tushar
Answered 08/06/2008 by: matrixtushar
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Dear Babu,

I simple rough theory to upgrade would be the following

-add the product code of the previous MSI in the Upgrade Tab.
-Make sure RemoveExistingProduct is in between InstallValidate and InstallInitialize.

Like VBScab and Tushar mentioned, google is there to help if you know ho to find them..

thanks
Harjinder
Answered 08/07/2008 by: PackageExpert
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Hi Tushar,
Could u please provide help file ?
Answered 08/07/2008 by: axsysbabu
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ORIGINAL: axsysbabu
Could u please provide help file ?
Download the SDK. It's included with that. To be honest, I don't believe you can do this job with that SDK and the tools provided therein, particularly if you are a beginner.
Answered 08/07/2008 by: VBScab
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Hi,

Yes VBScab i do agree with you on that. Spoon feeding delights but poisons the spirit!!
But msi.chm is the ultimate source for help :-)

regards,
tushar.
Answered 08/07/2008 by: matrixtushar
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ORIGINAL: matrixtushar

But msi.chm is the ultimate source for help :-)

Can the msi.chm answer your questions?
Forums are more likely a greater candidate to get the answers, however the msi.chm will give you the basic answers.

/Kim
Answered 08/07/2008 by: AngelD
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Hello,

Apologies for that statement of mine that the chm is ultimate. Had it been the file that was more helpful, i (and all of us) would never have landed up here... Very true AngelD and now i realize the mistake in using that statement.

However, the kind of problem being addressed here, is a basic one and a little research will surely help. I was just assisting and the intention was quite simple. Keeping the current context of the topic, the mentioned file will be of great help.

regards,
tushar
Answered 08/07/2008 by: matrixtushar
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The MSI.CHM or Windows Installer at Microsoft -> MSDN it a must for packagers.
Nothing wrong in your statement, I just forgotten the smiley [;)]

Cheers!
Answered 08/07/2008 by: AngelD
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