In order to debug .NET applications, Microsoft provides a tool called WinDBG available in “Windows SDK”.
WinDBG is a native debugger and need additional extensions to work with .NET application. These extensions are different based on technology and .NET version (Silverlight / WPF / .NET 2.0 / .NET 4, etc.).
SOS SOS.dll (Son Of Strike) is a DLL provided by .NET Framework and is available in folder :
C:\Windows\Microsoft.NET\Framework\
The DLL loading is slightly different if your application is a classic .
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