C/C++ :: Getting All Files And Subfolders In Given Path?

basically I need to list all of files and subfolders and files inside them etc till all paths has been inspected, read data from every single object and pack it all into a single file.

I did not want to use boost or minizip because it seems too much for something so easy so I just wrote it myself via dirent - everything works fine I just have problem with directories and files with non ANSI character in titles (I'm from Poland) like ąęoźż etc. I can open them without problem and read all data from them but when I pack their's filename to std::string - it gets corrupted and happend to be for example:

TEST~1 instead of TESTąę

Just a note that data inside files is being written without problems - all special characters are stored without problems.

Code:

#include <list>
#include <string>
#include <dirent.h>
#include <cstdio>
#include <windows.h>
typedef struct {
std::string path;
unsigned lenght_of_path;

[code].....

I have already tried using std::wstring and Wide Characters function from dirent.h but I have failed.