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shiping
Level 2
‎Jul 05, 2012 10:26 AM

installer created by installshield returned error code 1638 - Another version of this

I'm experiencing annoying error message "Another version of this product is already installed. Installation of this version cannot continue. To configure or
remove the existing version of this product, use Add/Remove Programs on the Control Panel" when I launch msi file with version number 2.7.1 after 2.7.0 was already installed on the machine. I'm expecting it provide me option of upgrade rather than "another version installed".

However I don't have any problem when upgrading from version 2.6 to 2.7. Only the third field of version number doesn't work.
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TsungH
Level 12
‎Jul 16, 2012 08:40 PM

You will want to familiarize yourself with Patching and Upgrades.
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