Tools like .NET Reflector or ILSpy can reconstruct the original source code from the DLL. Common Use Cases Stopwatch Class (System.Diagnostics) - Microsoft Learn
It returns time in various formats, such as Elapsed (as a TimeSpan ), ElapsedMilliseconds , or raw ElapsedTicks . How to Analyze the DLL stopwatch.dll
Open Visual Studio, go to View > Object Browser , and add the DLL to see its classes and methods. Tools like
Most stopwatch.dll implementations rely on the Win32 API function QueryPerformanceCounter (QPC) to achieve microsecond or nanosecond precision. go to View > Object Browser
It usually exposes methods to control timing state: Start() / Stop() : Initiates or halts the timer. Reset() : Clears the elapsed time. Restart() : Resets and starts the timer in one call.