Information about the command-line option for installing Forefront Security for Exchange to an undiscovered drive

This article describes information about the command-line option for installing Microsoft Forefront Security for Exchange to an undiscovered drive.

The command-line option for installing Forefront Security for Exchange to an undiscovered drive letter should not be used to override shared drive dependencies for clusters. The shared drive that you try to install to must be located in the cluster group that is being protected. All dependencies are contained within the cluster group. The command-line option is intended for customers who have third-party volume managers and disk array firmware that do not publish mount point information to the Cluster service for client discovery. In this case, Forefront Security for Exchange is the client application that provides protection, and it has to discover that information. If you can verify that Forefront Security for Exchange did not discover the correct shared volume during installation, the command-line option is the best workaround for a correct installation.