Difference b/w major upgrade and minor upgrade?

  • anitha_accen
    Blue Belt
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  • 10/10/2005
Hello everybody,

My friend had an interview in a co for application packager. They asked him wat is the difference between major upgrade and minor upgrade itseems. Since i do noot have answer for this question, i am posting in our forum. can anyone tell me wat is this?
Thanks in advance.

Regards
anitha
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Anitha,

During a major upgrade using Windows Installer version 1.1 or later, the installer searches the user's computer for applications that are related to the pending upgrade, and upon detecting one, retrieves the version of the installed application from the system registry. The installer then uses information in the upgrade's database to determine whether to upgrade the installed application.

a minor upgrade changes the package code and product version.
a minor upgrade does not change the product code. Minor upgrades provide product differentiation without actually defining a different product.

The above quotes are from Msi help.Please refer to Msi.chm for more detailed help
Answered 10/10/2005 by: slb
Purple Belt

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Thanks a lot slb
Answered 10/10/2005 by: anitha_accen
Blue Belt

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Minor Upgrade
1. Change in product version 1.0→1.1

2. Product tree does not change much

3. Run-time behavior is to install over existing product

Major Upgrade
Product version changes
1.2→2.0

Run-time behavior is either:
Uninstall old, install new
Install over old, remove leftovers
Depends on “RemoveExistingProducts” action scheduling

Hope this helps .

Cheers ,
V
Answered 10/10/2005 by: viv_bhatt1
Senior Purple Belt

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