Rather than fighting the Windows Installer Service, use a different pattern. For every property that has a component that writes it to the registry, I have a matching RegistrySearch that loads the property with the contents of the property written out by the matching component. Repairing and Patching (and upgrading to a lesser degree) doesn't work right if properties like INSTALLFOLDER aren't "remembered" in this way.
Mucking with the REINSTALLMODE inside the installer is seldom a good idea. That being said, the property you would want is REINSTALLMODE and not MSIREINSTALLMODE. NeverOverWrite probably doesn't do what you think. :) -- John Merryweather Cooper Build & Install Engineer -- ESA Jack Henry & Associates, Inc.(r) Shawnee Mission, KS 66227 Office: 913-341-3434 x791011 jocoo...@jackhenry.com www.jackhenry.com -----Original Message----- From: Swaroop Kare [mailto:swaroop.k...@ifdspercana.com] Sent: Thursday, August 29, 2013 11:34 AM To: General discussion for Windows Installer XML toolset. Subject: [WiX-users] Prevent Registry entries from Overwritten by a Patch Hi, Can anyone tell me how to prevent overwriting of Registry entries during a Patch install. I have tried to prevent them by adding below code in the installer, but was unsuccessful Method1: <Property Id="MSIREINSTALLMODE" Value="so"/> Method2: <Component Id="clientReg" KeyPath="yes" NeverOverwrite="yes" Guid="{Put-GUID}" > <RegistryKey Root="HKLM" Key="SOFTWARE\MyProject"> <RegistryValue Type="string" Name="LogPath" Value="[INSTALLFOLDER]LogFiles"/> <RegistryValue Type="string" Name="LogMode" Value="1"/> <RegistryValue Type="string" Name="LogCacheSize" Value="20"/> </RegistryKey> </Component> Below is my trace file: Action 14:21:51: WriteRegistryValues. Writing system registry values . . . MSI (s) (8C:E0) [14:21:51:645]: Executing op: RegAddValue(Name=LogPath,Value=E:\MyProject \LogFiles,) MSI (s) (8C:E0) [14:21:51:645]: Executing op: RegAddValue(Name=LogMode,Value=1,) MSI (s) (8C:E0) [14:21:51:661]: Executing op: RegAddValue(Name=LogCacheSize,Value=20,) Thanks This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to which it is addressed and may contain information which is privileged, confidential or prohibited from disclosure or unauthorised use. You are hereby notified that any use, any form of reproduction, dissemination, copying, disclosure, modification, distribution and/or publication of this e-mail message or its attachments other than by it's intended recipient is strictly prohibited by the sender. 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