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POClient won't talk to ATL Service
 

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    <p>I'm having a problem with an ATL Service that exports a COM object. It works running as a local service, but when running as a Windows Service, I can't connect. The service starts correctly and runs, but my client (code below) always fails with the error "Failed to start service".</p> <p>So we're looking at the same thing, I've put together a minimal project that will reproduce this issue on my PC. </p> <p>File->New Project<BR> Visual C++ -> ATL "ATL Project"<BR> Name: "MyService"<BR> Under Application Settings, select "Service (EXE)"<BR></p> <p>Go to "Class View"<BR> Right click on "MyService" and Add -> Class<BR> select: "ATL Simple Object"<BR> Short Name: "MyObject"<BR></p> <p>Go to "Solution View"<BR> Right-click "Solution 'MyService'" and Add -> "New Project" <BR> This will be a "Visual C++" -> "Win32" "Win32 Console Applicaion"<BR> Name: "MyClient"<BR/> Check the "Add common header files for ATL" box<BR></p> <p>In client.cpp, use this code:<BR></p> <pre><code>#include "stdafx.h" #import "../MyService/Debug/MyService.tlb" #include &lt;iostream&gt; using namespace MyServiceLib; int _tmain(int argc, _TCHAR* argv[]) { ::CoInitialize( NULL ); try { IMyObjectPtr spQueue( __uuidof( MyObject ) ); } catch( const _com_error&amp; Err ) { std::wcout &lt;&lt; L"Error: " &lt;&lt; Err.ErrorMessage() &lt;&lt; std::endl; } catch( ... ) { std::wcout &lt;&lt; L"Unexpected Error" &lt;&lt; std::endl; } ::CoUninitialize(); std::wcout &lt;&lt; L"Finished" &lt;&lt; std::endl; return 0; } </code></pre> <p>Open the "Project Dependencies"<BR> Project "MyClient" depends on "MyService"<BR></p> <p>Build the solution.<BR></p> <p>From the command prompt, run the following commands: <BR> MyService /Service<BR> net start MyService<BR> client<BR></p>
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