# Installation Components

Select the SLM components to install:

- All components: Installs the client and the server. If you install on a Windows platform also the Microsoft Management Console (MMC) snap-in is installed.
- Client, Snap-in: Installs the client and the MMC snap-in. You can only select this option if you install on a Windows platform.
- Client: Installs the client.

The client is always installed because it includes tooling that is required to configure the server.

When a destination directory was specified in the previous dialog box that already contains SLM components, the installation procedure performs an upgrade.

Depending on the actual contents of the destination directory, the three options on this dialog box are enabled or disabled as appropriate.

When the client and server components are already installed, you cannot select the Client option. This option is disabled and consequently all components must be reinstalled.

When the option All components is disabled, the text adjacent to this selection reflects the reason why server components cannot be installed.