I am using Windows 7 and I have to run one program in that windows but that program working in Windows XP. This is a Visual C++ program and I am using Visual Studio 2008 for this. When I am running my application, it does not throw any errors, but it does not create a directory in "c:\program files\". So can anyone help me to create directory and exe file?

This is the code I am using:

char szAppPath[MAX_PATH];
char szFileName[MAX_PATH];
DWORD dwResult;
WIN32_FIND_DATA FindFileData;
HANDLE hFind;

dwResult = ExpandEnvironmentStrings( NULL, szAppPath, MAX_PATH);  // "%ProgramFiles%"


// do same for NSim directory
strcat(szAppPath,"\\NSim");
hFind = FindFirstFile(szAppPath, &FindFileData);

if (hFind == INVALID_HANDLE_VALUE) 
{
    //Directory Does't Exists create New
    if(!CreateDirectory(szAppPath,NULL))  //Throw Error
    {
        MessageBox("Unable to Create N-SIM directory","NSim Installer");
        return ;
    }
} 
else  
{
    //check if is directory or not
    if(!(FindFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) 
    {
        MessageBox("Can't Create N-SIM directory\n Another file with same name exists","NSim Installer");
        return ;
    }

    FindClose(hFind);
}

//***************************************N-SIM Application****************************
strcpy(szFileName, szAppPath);
HRSRC hRes;

if( bRegister == FALSE)
{
    strcat(szFileName,"\\NSim.exe"); //make same name of the Client & Server in program file
    hRes = FindResource(NULL, MAKEINTRESOURCE(IDR_LANSIMSERVER),RT_RCDATA);

    if(flagUpgrade ==0)
    {
        CString trial = installationDate();   //----- Detemine Expiry Date -----

        setRegistry(trial);
    }
}