How do I check to for source code loaded

I want to step into some API functions (CreateFile in particular). How do
I check to see if I have the Microsoft source code loaded on my machine?

.

Relevant Pages

  • Refreshing drives from within C#
    ... I am using some low level Win32 API functions (CreateFile, ReadFile, etc) for writing an application that will change the Volume serial ...
    (microsoft.public.dotnet.languages.csharp)
  • read/write in file
    ... My question is, what is better WIN API functions (CreateFile, ... Read/WriteFile) or MFC CFile class? ...
    (microsoft.public.windowsce.embedded.vc)
  • Re: What is the mean of definition of INVALID_HANDLE_VALUE
    ... "kimi" wrote in message ... Some API functions, such as CreateFile() are defined to return a handle. ... Regards, ...
    (microsoft.public.vc.language)