C++ filesystem replace_extention

BOOL Program::LoadJsonConfig()
{
	namespace fs = std::filesystem;

	wchar_t exePathStr[4096];
	GetModuleFileName(NULL, exePathStr, 4096);
	fs::path exePath = exePathStr;
	fs::path jsonConfPath = exePath.replace_extension("config.json");

	if (fs::is_regular_file(jsonConfPath) == false)
	{
		return FALSE;
	}

	std::ifstream jsonConfFile(jsonConfPath);
	try
	{
		jsonConfFile >> m_jsonConfig;
	}
	catch (...)
	{
		jsonConfFile.close();
		return FALSE;
	}

	jsonConfFile.close();
	return TRUE;
}