I have a similar problem with our 2.x installer which has already been
released.  Now that we are preparing our 3.x, because of all the rules we
are doing a major upgrade and have changed the product code, leaving upgrade
code the same.  This works fine for 3.x automatically detecting and
uninstalling 2.x, however when 3.x is installed the user can still run the
2.x installer without being stopped.  This is propbably because I didn't
know enough at the time to do this:
http://msdn.microsoft.com/en-us/library/aa370840(VS.85).aspx

Is there anything I can do at this point to prevent our (already released)
2.x from installing over our (in development) 3.x?

Thanks,

Shawn


On Wed, Apr 15, 2009 at 1:30 PM, Alex Cater <alex.ca...@apdcomms.com> wrote:

>
>
> Works for us. No CustomActions necessary.
>
>
> I recall that there were sequencing issues related to LaunchConditions
> although it appears that this has now been addressed from WiX version
> 3.0.5027.0.
>
> LaunchConditions, FindRelatedProducts and Downgrades
> --
> View this message in context:
> http://n2.nabble.com/Wix-Installer-Upgrade-problem-tp2627135p2640229.html
> Sent from the wix-users mailing list archive at Nabble.com.
>
>
>
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