Upgrade issue


I have a package that I made of a excel addin that is used to complete web queries.
My development team have made subsequent changes to the source files following these changes I had to create a second release of this package which upgraded the package to the second release.

They have now made further changes to the source files. I am trying to follow the same process that I followed in the second release.
but I am unable to upgrade I keep getting a message stating that a previous version of the software is already installed .

I have setup a second major upgrade item.
The package installs correctly on a clean machine.

FYI: im using installshield and im still a beginner.

Any help will be much appreciated

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Answers (4)

Posted by: jcarri06 15 years ago
Senior Purple Belt
Your answer is in that link :)

This ID must vary for different versions and languages.

Make sure you generated a new GUID for your new updated package, that should be it.
Posted by: HaFfDoGg 15 years ago
Senior Yellow Belt
Hi Mate

Thanks for the help sorry I did try replacing the GUID of the upgrade initialy so I think I just misread the article first time around ,
Its working perfectly now!

Thank you guys!!
Posted by: anonymous_9363 15 years ago
Red Belt
Welcome to the forum and to packaging.

Have a read of the MSDN article about the ProductCode property http://msdn.microsoft.com/en-us/library/aa370854.aspx

You could do worse than search AppDeploy for 'ProductCode', 'UpgradeCode' and/or 'major upgrade'.

I would imagine that John McFadyen's blog would have something to say about upgrades, too. I would post a link but my current client blocks his host.
Posted by: HaFfDoGg 15 years ago
Senior Yellow Belt
Hi VBScab

I've had a look at the sites listed but unfortunately I cant find a definitive answer.
Has anyone come across a similar issue when adding a second upgrade?

Many thanks
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