We are moving our installer generation to WiX. Unfortunately, we delayed on
this too long and we now find ourselves needing to switch *NOW* because we have
pretty much hit a brick wall with our current installer software and there is
no fix coming from the company. So, expect several questions in the days ahead.
I've used WiX on small projects many times, but this is definitely going to be
orders of magnitude more complicated. I appreciate the expertise of the
community!
My first question is: what do I need to do to remove the previous version of
the application (generated from the other installer) using my WiX installer?
I used Orca to look at the MSI database of the previous installer. The
UpgradeCode in the Property table has a Guid, let's call that
{0123-UPGRADEGUID-CDEF}. ProductVersion is 3.70.
I started by wxs with:
<Product Id="*" Name='!(loc.ProductName)' Language="1033"
Version='$(var.ProductVersion)' Manufacturer='!(loc.CompanyName)'
UpgradeCode='$(var.UpgradeCode)'>
<Package Id='*' Description='!(loc.PackageDescription)'
Manufacturer='!(loc.CompanyName)' InstallerVersion='200' Languages='1033'
Compressed='yes' />
<Upgrade Id="$(var.UpgradeCode)">
<UpgradeVersion Minimum="$(var.ProductVersion)" OnlyDetect="yes"
Property="NEWERVERSIONDETECTED" />
<UpgradeVersion Minimum="1.0.0" IncludeMinimum="yes"
Maximum="$(var.ProductVersion)" IncludeMaximum="no"
Property="OLDERVERSIONBEINGUPGRADED" />
</Upgrade>
<InstallExecuteSequence>
<RemoveExistingProducts After="InstallValidate" />
</InstallExecuteSequence>
<Condition Message="!(loc.NewerVersionDetected)">
NOT NEWERVERSIONDETECTED
</Condition>
...
UpgradeCode is set to the same UpgradeCode as found in the Orca database
({0123-UPGRADEGUID-CDEF}); ProductVersion is 3.71.
Everything compiles and runs, but nothing is being removed. It is adding
another application with the same name in Add/Remove Programs. What else do I
need to do?
Dave
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