Microsoft has released Windows Installer Service 4.0 with Windows Vista. This new version of msi engine introduces some new properties which are exclusively available to msi based installations targeted for Windows Vista & Longhorn.
MSIARPSETTINGSIDENTIFIER – The MSIARPSETTINGSIDENTIFIER property contains a semi-colon delimited list of the registry locations where the application stores a user’s settings and preferences. During an operating system upgrade, this information can be used by the setup to improve the experience of users migrating applications.
MsiLogging – This property can be used to enable automatic logging within the msi package. This propety value can be set to MSI logging parameters within the property table. Some valid values of this property would be: iwe, iwearcmpvo. Setting this property is the same as running your msi package with the /l option to create a log file. Note:You cannot use the “+” and “*” values of the /L option in the property value.
MsiLogFileLocation – This read/write property can be used to specify the name and location of the log file created by the MsiLogging Property. Not setting this property will automatically create a log file in the user’s temp location, the value of which will be set to this property.
MsiSystemRebootPending – This property is set to 1 if the target system has a pending reboot. This property can be used by setup in a launch condition to determine if a reboot is pending on the system.
MsiRunningElevated – This property is set to 1 if the msi package is being run with elevated privileges. This property is similar to using the Privileges property in msi 3.1 and earlier. MSIRESTARTMANAGERCONTROL - This property enables setup authors to specify whether the package will use the Restart Manager or FileInUse Dialog to handle locked files at installation time.
- The default value of this property is ‘0’, which forces the setup to interact with Restart Manager in case a locked file is encountered by the msi package.
- Setting this property to ‘Disable’ will force the msi package to use FileInUse Dialog instead.
- This property can also be set to “DisableShutDown”, which will mitigate Restart Manager’s ability to restart the machine in case of a reboot being triggered by the windows installer package. Using this property however does not disable Restart Manager from identifying files locked by applications and displaying the Restart Manager dialog.
MsiRestartManagerSessionKey - This value of this property is set to the Restart Manager session by the Microsoft installer.
MSIDISABLERMRESTART – This property is used to determine how applications and services that have locked files that need to be updated, will be handled after the update.
- Setting this property to ‘0’ will force all the services that were shut down during an update to be restarted and applications registered with the Restart Manager to be restarted after the update.
- Setting this property to ‘1’ will force all the processes (services & applications) that were shutdown during an update to not be restarted.
MSIRMSHUTDOWN – This property is used to determine how applications and services that are using files affected by an update should be handled during an update.
- Setting this property to ‘0’ will cause all the processes using files affected by the update to be shut down.
- Setting this property to ‘1’ will force all the processes using files affected by the update to be shutdown even if they don’t respond to Restart Manager.
- Setting this property to ‘2’ will cause the processes using files affected by the update to be shutdown only if they are registered to be restarted by the Restart Manager. If any process is not registered for a restart, then it will not be shut down.
MSIUSEREALADMINDETECTION – Setting this property to 1 will request the installer to use the actual user information when setting the AdminUser property.
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