I think I've cracked it.
<Property Id='UNINSTALL_EXE64'>
<RegistrySearch Id='LocateUninstallExe64' Type='file' Root='HKLM'
Key='SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{413B7644-1F93-4890-BD40-AC540C29935B}_is1'
Name='QuietUninstallString' />
</Property>
<Property Id='UNINSTALL_EXE32'>
<RegistrySearch Id='LocateUninstallExe32' Type='file' Root='HKLM'
Key='SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{413B7644-1F93-4890-BD40-AC540C29935B}_is1'
Name='QuietUninstallString' />
</Property>
<Media Id="1" Cabinet="ss.cab" EmbedCab="yes" />
<!-- Custom Actions -->
<CustomAction Id="ca.RemovePreviousVersion64"
ExeCommand="[UNINSTALL_EXE64]" Return="check" />
<CustomAction Id="ca.RemovePreviousVersion32"
ExeCommand="[UNINSTALL_EXE32]" Return="check" />
<!-- Installer Sequencing -->
<InstallExecuteSequence>
<Custom Action="ca.RemovePreviousVersion64"
Before="InstallFiles">VERSIONNT64</Custom>
<Custom Action="ca.RemovePreviousVersion32"
Before="InstallFiles">VERSIONNT</Custom>
</InstallExecuteSequence>
On 10/03/2011 22:23, Sean Farrow wrote:
> Hi:
> On a 32-bit version of windows, your key would look like:
> "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{413B7644-1F93-4890-BD40-AC540C29935B}_is1"
> I don't tend to use SilentUninstallString in these situations as this stil
> shows user interface--at least the cancel button if I remember correctly and
> it may even give the user the option to uninstall! I'd rather use
> "QuietUninstallString" as this shows nothing.
> To get these two custom actions to work you need to search the registry based
> on a condition--I'd use VERSIONNT64/VERSIONNT.
> Then have two custom actions in your InstallExecute sequence, one that
> executes if your running 32-bit windows and the other if your running 64-bit.
> Looking at the old code I ran the uninstall just before InstallFiles.
>
> If you need any further help let me know but hopefully this should be enough
> to get you going!
> Cheers
> Sean.
>
> -----Original Message-----
> From: Jammer [mailto:jam...@jammer.biz]
> Sent: 10 March 2011 20:43
> To: wix-users@lists.sourceforge.net
> Subject: [WiX-users] Uninstall Previous Inno Setup Installed App
>
> Hi All,
>
> I've just rewritten my installer using WiX 3.5. However, before I
> distribute the new MSI I'm dotting all the i and crossing the t's this
> time! The problem is that I need to make sure the previous .exe setup
> is removed before installing the new msi version.
>
> So, i've been looking at various ways to locate the unins000.exe file
> (UninstallString) and execute it. If possible I'd like to search the
> registry and use the info in there but I can't think of a way to use the
> <RegistrySearch> element and be sure it's found, if there.
>
> When I look at my dev machine registry the key would look like this:
>
> "SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{413B7644-1F93-4890-BD40-AC540C29935B}_is1"
>
> How would this work on a 32bit XP machine for instance? What key value
> can I possibly use to catch all flavours of OS? I've seen the Win64
> property but I can only find my keys in one place on my dev machine so
> if I said no to this it wouldn't find it on my dev box ... confused!
>
> All the script I have for this at the moment is:
>
> <Property Id='UNINSTALL_EXE'>
> <RegistrySearch Id='LocateUninstallExe' Type='file' Root='HKLM'
> Key='SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{413B7644-1F93-4890-BD40-AC540C29935B}_is1'
> Name='UninstallString' Win64='??' />
> </Property>
> <Property Id='UNINSTALL_CMD' Value='/SILENT'/>
>
> <InstallExecuteSequence>
> <Custom Action="ca.RemovePreviousVersion" Before="InstallInitialize" />
> </InstallExecuteSequence>
>
> <CustomAction Id="ca.RemovePreviousVersion" Property="UNINSTALL_EXE"
> ExeCommand="UNINSTALL_CMD" />
>
> Any pointers on this would be much appreciated.
>
> Thanks,
>
> Jammer
>
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