Wednesday, March 23, 2011

Known issue: Silent upgrade of the IM clients requires administrative rights

A new issue has been discovered by us. It belongs to the UpgradeUI setting under the [INSTALL] section of the setup.ini configuration file that can be used on clear installations and/or upgrading existing versions of the .

The UpgradeUI option controls the user interface (UI) mode that should be displayed by the Setup Wizard of the IM client on upgrading an existing version via MSI setup package. This option can be used only if a new version of the messenger is distributed from the communication server.

The following values are accepted:
0 — Show dialogs of the Setup Wizard with automated processing of an upgrade.
1 — Display only progress indicator with no any dialogs.
2 — Silent mode with displaying no progress bar and dialogs.

So if the UpgradeUI=2 is used then the MSI setup package is launched with the /quiet command line parameter which requires administrative rights on a client computer! We advise our customers to do not use this value if they are not sure that the installation package of the instant messenger will be launched under a user with administrative rights on computer.

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