本地过程调用（LPC，Local Procedure Call，通常也被称为轻量过程调用或者本地进程间通信） 是一种由Windows NT内核提供的内部进程间通信方式。通过这一方式，同一计算机上的进程可以进行轻量的通信。在Windows Vista中，ALPC（Advanced Local Procedure Call，高级本地进程通信）替代了LPC。ALPC提供了一个高速可度量的通信机制，这样便于实现需要在用户模式下高速通信的用户模式驱动进程框架（UMDF，User-Mode Driver Framework）。

The Local Procedure Call (LPC, often also referred to as Lightweight Procedure Call or Local Inter-Process Communication) is an internal, undocumented inter-process communication facility provided by the Microsoft Windows NT kernel for lightweight IPC between processes on the same computer. As of Windows Vista, LPC has been rewritten as Advanced Local Procedure Call (ALPC) in order to provide a high-speed scalable communication mechanism required to efficiently implement User-Mode Driver Framework, whose user-mode parts require an efficient communication channel with UMDF's components in the executive.