I’ve ran into a wall while working on the sample implementation of a debug
engine using ATL COM.  Is there a workaround?  Is this a known issue or did I
perhaps do something incorrect?

The intent of this was to follow the sample closely per Microsoft’s
documentation at :
ms-help://MS.VSCC.v80/MS.VSIPCC.v80/MS.VSSDK.v80/dv_vsdbgsdk/html/9097b71e-1fe7-48f7-bc00-009e25940c24.htm

While following the tutorial, I ran into a few bumps and mitigated as
follows:

1.) The dbgmetric[d].lib libraries were originally compiled with
/Zc:wchar_t-, but as of VC++ 8, the default is to define it. To workaround
this and use the libraries, use Project Properties->Languages->Treat wchar_t
as Native type => No

2.) The include files and external libraries are located in different
folders than specified in the tutorial. The path should look like ". . .
.//Visual Studio 2005
SDK/2006.04/VisualStudioIntegration/Archive/DebuggerSDK/Includes" and ". . .
. //Visual Studio 2005 SDK/2006.04/VisualStudioIntegration/Common/Lib"
In the final step of the sample implementation the compilation of MyCPrj
fails because _vsnwprintf was declared deprecated from VS 7.1 to VS 8.0. This
is yet another piece of the SDK that appears to not have been updated. The
suggestion from the output window is to use _vsnprintf_s instead, however the
function is called in strsafe.h which is not a part of the MyCPrj, rather it
is a part of Microsoft's general "Safer String Handling in C" released in
2002. Since the goal of this project isn't to create a more robust safe
string class in C, rather to create a custom debug engine I'll just turn off
"treat warnings as errors" in the compiler. After doing this, the MyCPrj
compilation succeeded.

3.) At the very end of the sample implementation walk through is an
explanation of how to configure the sample MyC project to target the Text
Interpreter debug engine previously created.  The documentation for this is
located at:
ms-help://MS.VSCC.v80/MS.VSIPCC.v80/MS.VSSDK.v80/dv_vsdbgsdk/html/5aca8b48-f760-4475-a89a-e1cc6c66a4da.htm

After following the instructions step by step, I reach step 18.  Once I
select “Properties” I get an assertion when using the debug build of the MyC
project and an application (Visual Studio) crash when using the release build.

Other than the aforementioned workarounds, I did not deviate from the
instructions given in the sample.