Since network operating systems may use different protocols to enable communications between independent PCs, a networking protection lock must can be applied to various network protocols.

• 由于网络操作系统可能运用不同的通讯协议来使独立的个人计算机间彼此沟通联系,所以一个网络专用的保护锁,必需要能运用在多种不同的网络通讯协议上。