For a major upgrade you MUST change the product GUID, increase your version 
number (Minor version) i.e. from 1.0.0.1 to 1.1.0.1 and use the MajorUpgrade 
element.
I just use:

Did you change the Product Id="some GUID">

    <MajorUpgrade Schedule="afterInstallValidate" AllowDowngrades="no"  
DowngradeErrorMessage="A newer version of $(var.PlatformProductName) is already 
installed. Setup will now exit." />

Comment OUT all of this:

  <Upgrade Id="11111111-2222-3333-55555-6666666666666">
      <UpgradeVersion Property="OLD_VERSION_FOUND"
        Minimum="1.0.0.0" Maximum="$(var.CurrentVersion)"
        IncludeMinimum="yes" IncludeMaximum="no"
        OnlyDetect="no" Language="1033" IgnoreRemoveFailure="yes"
        MigrateFeatures="yes" />
      <UpgradeVersion Property="NEWER_VERSION_FOUND"
        Minimum="$(var.CurrentVersion)" IncludeMinimum="no" OnlyDetect="yes"
        Language="1033" />
    </Upgrade>
    <InstallExecuteSequence>
        <RemoveExistingProducts After="InstallFinalize" />
    </InstallExecuteSequence>

That should work...

Steve

-----Original Message-----
From: Helge Kruse [mailto:helge.kr...@gmx.net] 
Sent: February-15-13 10:34 AM
To: wix-users@lists.sourceforge.net
Subject: [WiX-users] Remove Existing Products

I want to install my first major upgrade. The older product MSI version 1.05.02 
has been build with InstallShield. Let's say the UpgradeCode of the old product 
is 11111111-2222-3333-55555-6666666666666.

My new installer has the same UpgradeCode as the old product version.
<?define CurrentVersion="1.06.00"?>
<Product Id="*" Language="1033" Version="$(var.CurrentVersion)"
    UpgradeCode="11111111-2222-3333-55555-6666666666666">

The upgrade should be determined by the following fragment, that is based on 
the WiX book of Nick Ramirez:
  <Upgrade Id="11111111-2222-3333-55555-6666666666666">
      <UpgradeVersion Property="OLD_VERSION_FOUND"
        Minimum="1.0.0.0" Maximum="$(var.CurrentVersion)"
        IncludeMinimum="yes" IncludeMaximum="no"
        OnlyDetect="no" Language="1033" IgnoreRemoveFailure="yes"
        MigrateFeatures="yes" />
      <UpgradeVersion Property="NEWER_VERSION_FOUND"
        Minimum="$(var.CurrentVersion)" IncludeMinimum="no" OnlyDetect="yes"
        Language="1033" />
    </Upgrade>
    <InstallExecuteSequence>
        <RemoveExistingProducts After="InstallFinalize" />
    </InstallExecuteSequence>

I have checked that the UpgradeCode and the Language match with the former 
product version. When I install the new MSI does not remove the existing 
product. When running msiexec with /l*v I get this log
(excerpt):

Action ended 15:51:41: InstallValidate. Return value 1.
MSI (s) (E0:DC) [15:51:41:910]: Doing action: RemoveExistingProducts Action 
15:51:41: RemoveExistingProducts. Removing applications Action start 15:51:41: 
RemoveExistingProducts.
Action ended 15:51:41: RemoveExistingProducts. Return value 1.
MSI (s) (E0:DC) [15:51:41:912]: Doing action: InstallInitialize Action 
15:51:41: InstallInitialize.
Action start 15:51:41: InstallInitialize.

AFAIK the return value 1 of RemoveExistingProducts indicates an error.
But I don't know what error.

The new files are installed, but I still see the old version of the product in 
the Programs and Features. When I uninstall the old MSI the product is removed.

How do I find the failure for the RemoveExistingProducts action? How do I fix 
my setup wxs?

Regards
Helge

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