Which software monitors and displays Win32 API calls made by applications?

Which software monitors and displays Win32 API calls made by applications?

• A. API Monitor
• B. DNSChanger
• C. NetFlow Traffic Analyzer
• D. virus scanner

Answer: (A)

Capturing and displaying the exact Win32 API calls that a program makes is what API Monitor does best. It hooks into Windows API calls from a running process and shows a live list of each invocation, including the function name, parameters, and return values, often with details about memory structures and call order. This makes it ideal for understanding how an application interacts with the operating system, debugging, or analyzing behavior for security testing. The other options serve different purposes. DNSChanger is malware that alters DNS settings, not a tool for observing API calls. NetFlow Traffic Analyzer analyzes network flow data to understand traffic patterns, not the internal API usage of applications. A virus scanner searches for and removes malware signatures, which again is not about tracing API calls. So for monitoring and displaying Win32 API calls, API Monitor is the appropriate choice.

Capturing and displaying the exact Win32 API calls that a program makes is what API Monitor does best. It hooks into Windows API calls from a running process and shows a live list of each invocation, including the function name, parameters, and return values, often with details about memory structures and call order. This makes it ideal for understanding how an application interacts with the operating system, debugging, or analyzing behavior for security testing.

The other options serve different purposes. DNSChanger is malware that alters DNS settings, not a tool for observing API calls. NetFlow Traffic Analyzer analyzes network flow data to understand traffic patterns, not the internal API usage of applications. A virus scanner searches for and removes malware signatures, which again is not about tracing API calls. So for monitoring and displaying Win32 API calls, API Monitor is the appropriate choice.