bool function()
    { 
        HKEY hKey;
        LPCTSTR subKey;
        LPCTSTR subValue;
        HKEY resKey;
        DWORD dataLen;
        hKey = HKEY_CURRENT_USER;
        subKey = "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run";
    
        long key = RegOpenKeyExA(hKey, subKey, 0, KEY_READ | KEY_WRITE, &resKey);
        if(key == ERROR_SUCCESS)
        {
    			subValue = "MyCoolProgram";
    		long key = RegQueryValueExA(resKey, subValue, NULL, NULL, NULL, NULL);
    		if(key == ERROR_FILE_NOT_FOUND)
    		{
    			return false;
    		}
    		else
    		{
                        TCHAR szPath[MAX_PATH];
                        GetModuleFileName(NULL,szPath,MAX_PATH);
    			DWORD dataLen = data.size()+1;
    
    			long key = RegSetValueExA(resKey, subValue, 0, REG_SZ, (LPBYTE)szPath, dataLen);
    			if(key == ERROR_SUCCESS)
    			{
    				return true;
    			}
    			else
    			{
    				return false;
    			}
    		}
        }
        else
        {
            return false;
        }
    }