The value of IsThreadSafe is used to determine whether to use a global lock when writing to the listener. If the value of IsThreadSafe is false, the global lock is used regardless of the value of UseGlobalLock. The global lock is not used only if the value of IsThreadSafe is true and the value of UseGlobalLock is false. The default behavior is to use the global lock whenever writing to the listener.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)