a Windows application that allows you to look at the messages being sent in the system. When developing your own applications you can see the messages and you can inspect them
a development tool to help programmers adheres to a coding standard. It automates the process of checking code to spare humans of this boring (but important) task.
from Sysinternals Freeware, a Registry monitoring utility that will show you which applications are accessing your Registry, which keys they are accessing, and the Registry data that they are reading and writing - all in real-time.
scans any 32-bit or 64-bit Windows module (exe, dll, ocx, sys, etc.) and builds a hierarchical tree diagram of all dependent modules, all the functions that are exported by module, and which are actually being called.
a runtime verification tool used in testing applications for compatibility with Microsoft Windows XP. This tool can be used to test for a wide variety of known compatibility issues while the application is running.