Glad it works for you.  To explain the logic, it's adding a clause to
each condition so that it will resolve to true if you're on the
*other* architecture.  So:

   Installed OR (SQLSYNCX64SEARCH > "0" AND VersionNT64) OR (NOT VersionNT64)

This is the x64 search, and resolves to true under the following conditions:

   * Installed - The product (your MSI) is already installed

   * OR (SQLSYNCX64SEARCH > "0" AND VersionNT64) - SQLSYNCX64SEARCH is
set to a value greater than 0, and the architecture is x64
(VersionNT64 is set)

   * OR (NOT VersionNT64) - the architecture is x64 (in which case
VersionNT64 would resolve to nothing)

The other check works in a similar way, just with the other search,
and reversing the VersionNT64 checks.

On 19 December 2012 15:33, Steven Ogilvie <steven.ogil...@titus.com> wrote:
> John, Rob, Peter,
>
> Thanks so much for your help... the below from John works like a charm!
> Can't get my head around the logic but it works...
>
> Steve
>
> -----Original Message-----
> From: John Ludlow [mailto:john.ludlow...@gmail.com]
> Sent: December-19-12 9:24 AM
> To: General discussion for Windows Installer XML toolset.
> Subject: Re: [WiX-users] Registry search and condition message in installer
>
> That would only work at build time, if you were compiling an x86 MSI and an 
> x64 MSI.
>
> I think you just need to extend your condition to something like this:
>
>    Installed OR (SQLSYNCX64SEARCH > "0" AND VersionNT64) OR (NOT VersionNT64)
>
>    Installed OR (SQLSYNCX86SEARCH > "0" AND NOT VersionNT64) OR (VersionNT64)
>
>
> On 19 December 2012 13:32, Steven Ogilvie <steven.ogil...@titus.com> wrote:
>> Then I will have to use $(var.Platform) <> "x86" that should work
>>
>> -----Original Message-----
>> From: Peter Shirtcliffe [mailto:pshirtcli...@sdl.com]
>> Sent: December-19-12 5:11 AM
>> To: General discussion for Windows Installer XML toolset.
>> Subject: Re: [WiX-users] Registry search and condition message in
>> installer
>>
>> VersionNT64 is undefined on a 32-bit OS so Installed OR (SQLSYNCX64SEARCH > 
>> "0" AND VersionNT64) would be
>> FALSE or (something AND FALSE)   === FALSE
>> which would cause the message to display.
>>
>> -----Original Message-----
>> From: Steven Ogilvie [mailto:steven.ogil...@titus.com]
>> Sent: 19 December 2012 04:19
>> To: General discussion for Windows Installer XML toolset.
>> Subject: Re: [WiX-users] Registry search and condition message in
>> installer
>>
>> Oops I should have said as well...
>>
>> The 32 bit version is checked and correct since it is installed so the
>> logic is correct for the 32 bit check of <Property
>> Id="SQLSYNCX86SEARCH" Value="0"> it's the 64bit check that is failing
>> on the 32 bit OS
>>
>> -----Original Message-----
>> From: Rob Mensching [mailto:r...@robmensching.com]
>> Sent: December-18-12 7:19 PM
>> To: General discussion for Windows Installer XML toolset.
>> Subject: Re: [WiX-users] Registry search and condition message in
>> installer
>>
>> I always use a verbose log file to check the values of Properties since that 
>> where I usually make my mistakes.
>>
>>
>> On Tue, Dec 18, 2012 at 3:14 PM, StevenOgilvie <sogil...@msn.com> wrote:
>>
>>> I have a 32 bit installer, it can run on a 32 bit or a 64 bit OS...
>>> On the 32 bit OS only the 32 bit pre requisites are run, but on the
>>> 64 bit OS both 32/64 bit pre requisites are run.
>>>
>>> The installer verifies that the pre requisites are installed (ya its
>>> overkill but that is another story)...
>>>
>>> On a 64 bit machine all works fine, on a 32 bit OS I am running into
>>> errors where the condition message displays even though it shouldn't,
>>> I have been playing around with this for too long, what am I doing
>>> wrong? thanks in advance...
>>>
>>> Registry check:
>>>
>>>     <Property Id="SQLSYNCX86SEARCH" Value="0">
>>>       <RegistrySearch Id="SQLSyncx86Search"
>>>
>>>
>>>
>> Key="SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{7AC8EF88-D99
>> 6-4D47-
>> B40C-4DD93E307481}"
>>>                       Name="DisplayVersion"
>>>                       Root="HKLM"
>>>                       Type="raw"
>>>                       Win64="no"/>
>>>       </Property>
>>>
>>>     <Property Id="SQLSYNCX64SEARCH" Value="0">
>>>       <RegistrySearch Id="SQLSyncx64Search"
>>>
>>>
>>>
>> Key="SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{A4E269C1-168
>> D-40D3-
>> 9ABD-57FE4D4DB537}"
>>>                       Name="DisplayVersion"
>>>                       Root="HKLM"
>>>                       Type="raw"
>>>                       Win64="yes"/>
>>>       </Property>
>>>
>>> Condition Message:
>>> <Condition Message="Requires Microsoft Sync Framework 2.1 Core
>>> Components
>>> (x86) installed. To download the requirement please visit:
>>>                http://www.microsoft.com/en-us/download/default.aspx
>>> then restart the $(var.ProductName) setup.">
>>>       < ! [ CDATA [Installed OR (SQLSYNCX86SEARCH > "0")]]>
>>>     </Condition>
>>>     <Condition Message="Requires Microsoft Sync Framework 2.1 Core
>>> Components (x64) installed. To download the requirement please visit:
>>>                http://www.microsoft.com/en-us/download/default.aspx
>>> then restart the $(var.ProductName) setup.">
>>>       < ! [CDATA [(Installed OR (SQLSYNCX64SEARCH > "0" AND VersionNT64)]]>
>>>     </Condition>
>>>
>>> BTW I have added spaces < ! [ CDATA because nabble doesn't like this
>>> :) Steve
>>>
>>>
>>>
>>> --
>>> View this message in context:
>>> http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/Registr
>>> y -search-and-condition-message-in-installer-tp7582450.html
>>> Sent from the wix-users mailing list archive at Nabble.com.
>>>
>>>
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>>
>>
>>
>> --
>> virtually,
>>
>>    Rob Mensching
>>    http://RobMensching.com LLC
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