public static extern IntPtr OpenMutex(uint dwDesiredAccess, bool bInheritHandle, string lpName);

                // It's faster to first try OpenMutex

                IntPtr hMutex = Native.OpenMutex( ( uint ) ( Native.SyncObjectAccess.MUTEX_MODIFY_STATE ), false, name );

                        hMutex = Native.OpenMutex( ( uint ) ( Native.SyncObjectAccess.MUTEX_MODIFY_STATE ), false, name );

static extern IntPtr OpenMutex(uint dwDesiredAccess, bool bInheritHandle,

        hMutex = OpenMutex(SYNCHRONIZE, false, MUTEX_NAME);