预定义常量
PHP Manual

Win32Service Service Type Bitmasks
Constant Value Description
WIN32_SERVICE_WIN32_OWN_PROCESS 0x00000010 The service runs in its own process.
WIN32_SERVICE_INTERACTIVE_PROCESS 0x00000100 The service can interact with the desktop. This option is not available on Windows Vista or later.
WIN32_SERVICE_WIN32_OWN_PROCESS_INTERACTIVE 0x00000110 The service runs in its own process and can interact with the desktop. This option is not available on Windows Vista or later.

预定义常量
PHP Manual