Re: [WiX-users] How to handle Registry Redirection through WIX on 64-bit Platform

[Blair <os...@li...>]

You will need two searches: one for the 32-bit and one for the 64-bit
search.

-----Original Message-----
From: Vishwajit Walke [mailto:vis...@ma...] 
Sent: Wednesday, January 13, 2010 12:51 AM
To: wix...@li...
Subject: [WiX-users] How to handle Registry Redirection through WIX on
64-bit Platform

Hi,

I'm facing issues while fetching the Installation Path of a 64-bit component
through its Registry Entry on 64-bit Platform. Through WIX, when I'm
searching for a particular registry key, because of registry redirection it
is redirected to WOW6432node where registry keys doesn't exist.  So, through
WIX, is there any way to look into the 64-bit Registry View with only Single
MSI creation?

Here are some of my findings about the same :


1.       A component must be marked as Win64="yes" in order to cause
registry entries to be written under the 64-bit registry hive instead of the
WOW64 registry hive.

2.     Refer
http://stackoverflow.com/questions/1838009/platform-identification-in-wix-3-
0 , telling that we can use the Condition statement (documentation
here<http://wix.sourceforge.net/manual-wix2/wix%5Fxsd%5Fcondition.htm>)
which will detect at install time which platform the installer is running
on. This allows you to create just one installer which will work on all
platforms.

The test for 64bit platform is VersionNT64 and conversely the test for non
64bit platforms is NOT VersionNT64

For example:

<Component Id="SomeComponentId" Guid="SomeGuid">

<Condition>

<![CDATA[NOT(VersionNT64)]]>

<Condition>

<File Id="SomeFile" Name="Somefile.exe"
Source="$(var.UI.TargetDir)\ProjectOutput.exe" />

</Component>



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