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Major Upgrade not working

leshon
By
Level 3
I have 2 applications with different product, upgrade, and package codes. I want version 2.3.X to uninstall 2.2.X. I created an automatic upgrade item and pointed it at the 2.2 msi. It picked up the version and upgrade code and filled them in. The install fails saying "A newer version of this app. is already installed....Please uninstall the newer version first." This is the newer version I'm trying to install. I'm hoping this is something simple. Any help would be appreciated. Thanks

‎Mar 16, 2010 03:13 PM

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(1) Reply

Cary_R
By
Level 11
Hi Leshon,

This sounds like our new "Prevent Downgrade" custom action we added according to Microsoft Best Practices. This means that you've probably missed something with significant digits, and the way MSI treats them.

Remember:

2.001.00 < 2.01.00

Can you post the ProductVersion values you're using, as well as a logfile of the error occurring?

‎Mar 24, 2010 12:27 PM

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