When you use Group Policy Software Installation to deploy Communicator in your organization, you should assign the software installation to the Computer Configuration container instead of the User Configuration container.

Publishing from User Configuration results in a per-user installation. However, some Communicator installation files require a per-machine installation, so they will not install. An initialization error will occur the first time that a user runs Communicator.

For more information, see the Microsoft Knowledge Base article 947379, “Error message when you try to start Communicator 2007: The application failed to initialize properly (0xc0150002),” at http://go.microsoft.com/fwlink/?linkid=147165 .