There is some information about a bare minimum upgrade here: http://neilsleightholm.blogspot.co.uk/2009/01/wix-script-for-major-upgrades.html
In addition to what Pally said you also need to change the version number. Neil -----Original Message----- From: Pally Sandher [mailto:pally.sand...@iesve.com] Sent: 28 May 2012 14:35 To: General discussion for Windows Installer XML toolset. Subject: Re: [WiX-users] "Another version of this product is already installed" message If you're not using auto-generated Product & Package GUIDs, you'll need to manually change them every time if you want to use Major Upgrades. Package GUIDs should be auto-generated regardless. Product GUIDs are dependent on your patching policy (in a nutshell keep it the same if you want to use MSPs and/or Minor Upgrades, use auto-gen if you want to use Major Upgrades). Palbinder Sandher Software Platform Engineer T: +44 (0) 141 945 8500 F: +44 (0) 141 945 8501 http://www.iesve.com **Design, Simulate + Innovate with the <Virtual Environment>** Integrated Environmental Solutions Limited. Registered in Scotland No. SC151456 Registered Office - Helix Building, West Of Scotland Science Park, Glasgow G20 0SP Email Disclaimer -----Original Message----- From: Luca Bottari [mailto:l...@arcadiasrl.com] Sent: 28 May 2012 12:55 To: wix-users@lists.sourceforge.net Subject: [WiX-users] "Another version of this product is already installed" message I am new to the use of wix. I followed the tutorial (http://wix.tramontana.co.hu/tutorial) and made these steps: 1. Create SampleFirst.msi 2. Install SampleFirst.msi 3. Re-create SampleFirst.msi with no changes 4. execute the new SampleFirst.msi created at point 3 At the execution of the new SampleFirst.msi, a message box appears telling me that "another version of this product is already installed" even if nohing has changed. I saw the only difference is in the auto-generated (*) Package Id. It this behaviour correct? I would like automate the creation and execution the .msi file for test purpose, but this is not possible if every .msi file is different from the other. What can I do? If I set the Package Id a warning message appears, so I am not sure this is the right way to solve the problem. Please help, thanks ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
