• Applications designed to interact with the Win32 subsystem were the most common type of ap- plication in use with earlier operating systems, such as Windows XP. As new subsystems, such as .NET Framework, become more popular with developers the percentage of applications that use Win32 will drop.
• Each Win32 application runs in its own virtual memory space and is executed by the proces- sor in user mode. If the Win32 application crashes, it will not affect other Win32 applications or the operating system's kernel Executive Services. The number 32 refers to the binary size of the processor instructions in the applications code-32 bits.

Activity 11-1