COM

#include "stdafx.h"

#include <stdio.h>

#include <atlbase.h>
extern CComModule _Module;
#include <atlcom.h>
#include <initguid.h>
#include <comdef.h>

#include <ObjModel\appauto.h>
#include <ObjModel\appdefs.h>
#include <ObjModel\appguid.h>

#include <ObjModel\bldauto.h>
#include <ObjModel\bldguid.h>
#include <ObjModel\blddefs.h>

#include <ObjModel\textauto.h>
#include <ObjModel\textguid.h>
#include <ObjModel\textdefs.h>

#include <ObjModel\dbgauto.h>
#include <ObjModel\dbgguid.h>
#include <ObjModel\dbgdefs.h> 

IApplication *pApp;

int main(int argc, char* argv[])
{  
	// Initialize COM libraries  
	HRESULT hr = CoInitialize(NULL);  
	if(FAILED(hr))  
	{    
		printf("Failed to initialize the COM libraries\n");    
		return FALSE;  
	}  

	// Obtain the IApplication pointer  
	hr = CoCreateInstance(CLSID_Application, NULL, CLSCTX_LOCAL_SERVER, IID_IApplication, (void**)&pApp);  
	if(FAILED(hr))  
	{    
		printf("Failed to create an instance of MSDEV\n");    
		CoUninitialize();  
	}  

	CComBSTR bProjectName("project");  
	CComBSTR bPath("c:\\myproject");  
	CComBSTR bType("Application");  
	VARIANT_BOOL bCreateDirs=VARIANT_FALSE;	  

	// Create the project files  
	pApp->AddProject(bProjectName,bPath,bType,bCreateDirs);  

	// Quit from Visual C++  
	pApp->Quit();  
	pApp=NULL;  

	// Uninitialize COM libraries  
	CoUninitialize();  

	return 0;
}

Debug Error!

Program: test.exe
Module:
File: i386\chkesp.c
Line: 42

The value of ESP was not properly saved accross a function call. 
This is usually a result of calling a function declared with one 
calling convention with a function pointer declared with a different 
calling convention.