What is the difference between lightweight process and thread?

Question

I found an answer to the question here. But I don\'t understand some ideas in the answer. For instance, lightweight process is said to share its logical address space with other

Answer 1

From MSDN, Threads and Processes:

Processes exist in the operating system and correspond to what users see as programs or applications. A thread, on the other hand, exists within a process. For this reason, threads are sometimes referred to as light-weight processes. Each process consists of one or more threads.