I'm finding that the key is only deleted if it's empty: it has no
values, and the default value is not set. This is both using your
example, and using an Action='createKey' <Registry> element to
explicitly create the key that you're interested in, as follows:
<Registry Id='Reg01Parent' Root='HKLM' Key='Software\Acme'
Action='createKey'>
<Registry Id='Reg01' Name='SomeIntKey' Type='integer' Value='1'
Action='write' />
</Registry>
I suspect this is an underlying issue with Windows Installer. Viewing
the output .msi with Orca shows the following data (table, best viewed
in fixed-width font):
Registry | Root | Key | Name | Value | Component
------------+------+---------------+------------+-------+---------------
--
Reg01 | 2 | Software\Acme | SomeIntKey | #1 | MainExecutable
Reg01Parent | 2 | Software\Acme | + | | MainExecutable
Your example has only the 'Reg01' row present.
If your application depends on an empty key being present I think you'll
have to work around it. If you need to reset a registry value to the
value it had before installation, rather than removing the value, then I
think you will need to use a custom action - I can't see any way in the
Registry table
(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/msi/se
tup/registry_table.asp) of leaving a value on the system.
(Registry terminology: keys contain values; values have data. This is
consistent with the API names, e.g. RegCreateKey, RegQueryValueEx,
RegSetValueEx. Note that Windows Installer's schema is inconsistent in
its use of terminology here: 'Name' should, IMO, be 'ValueName' and
'Value' should be data.)
--
Mike Dimmick
________________________________
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Douglas
Watts
Sent: 15 September 2006 15:47
To: wix-users@lists.sourceforge.net
Subject: [WiX-users] Registry Key on Uninstall
WIX Version: 2.0.4415.0
Problem Summary: How to prevent pre-existing registry keys from being
removed during uninstall.
I'm still quite new to WiX so please bear with me. I am trying to
understand a scenario.
I am going to install an application that will create some registry
entries but will also update some that already exist. During the
uninstall all registry keys are removed. I need to keep any that
already existed.
Here is a simple script that shows what I'm talking about. To test it,
simply create a README.TXT file for it to install. Also, manually
create a registry key in HKLM\Software\Acme called 'SomeIntKey'. The
key is a DWORD so set its value to any non-zero value.
If you install the MSI created with this script then the registry key is
changed to 1 (that's good). Now uninstall the MSI. The key is removed
(that's bad)!
How do I prevent the key from being removed during uninstall?
<?xml version='1.0'?>
<Wix xmlns='http://schemas.microsoft.com/wix/2003/01/wi'>
<Product Id='457E3468-BA41-47bd-83A8-F6D44B282171'
Name='Test Package'
Language='1033'
Version='1.0.0.0'
Manufacturer='Acme, Inc.'>
<Package Id='????????-????-????-????-????????????'
Description='My first Windows Installer package'
Comments='This is my first attempt at creating a Windows
Installer database'
Manufacturer='Acme, Inc.'
InstallerVersion='200'
Compressed='yes' />
<Media Id='1' Cabinet='product.cab' EmbedCab='yes' />
<Directory Id='TARGETDIR' Name='SourceDir'>
<Directory Id='ProgramFilesFolder'>
<Directory Id='INSTALLDIR' Name='TestProg' LongName='Test
Program'>
<Component Id='MyComponent'
Guid='457E3468-BA41-47bd-83A8-F6D44B282173'>
<File Id='readme' Name='readme.txt' DiskId='1'
src='readme.txt' />
<Registry Id='Reg01' Root='HKLM' Key='Software\Acme'
Name='SomeIntKey' Type='integer' Value='1' Action='write' />
</Component>
</Directory>
</Directory>
</Directory>
<Feature Id='MyFeature' Title='My 1st Feature' Level='1'>
<ComponentRef Id='MyComponent' />
</Feature>
</Product>
</Wix>
__________________________________
Doug Watts
Advectis, Inc.
Direct: 678.460.4605
Cell: 770.314.6704
The #1 Network for Mortgage Document Collaboration
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