GCSettings.IsServerGC Property

If server garbage collection is not enabled, workstation garbage collection is in effect (with or without concurrent collection). Server garbage collection is available only on multiprocessor computers.

An unmanaged host can request server garbage collection, and the host request overrides configuration file settings. If the host does not specify the type of garbage collection, you can use a configuration file setting to specify server garbage collection. This setting is valid only in the application configuration file, not in the machine configuration file. The following example shows the contents of a sample application configuration file that enables server garbage collection.

<configuration>
  <runtime>
    <gcServer enabled="true" />
  </runtime>
</configuration>

.NET Framework

.NET Framework Client Profile

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference