Неразрешенный внешний символ(потоковая функция)

#include <process.h>
#include <stdio.h>
#include <windows.h>
#include <string>
#include <iostream>
 
using namespace std;
 
struct Information
{
    HANDLE hFile;
    CHAR buffer[50];
    OVERLAPPED Overlapped;
    DWORD NumberOfBytes;
    DWORD source_file_pos;
    DWORD destination_file_pos;
} info;
 
HINSTANCE MyLibrary;
HANDLE read_end, write_end, exit_event;
 
DWORD WINAPI ReadThread(PVOID pvParam);
DWORD WINAPI WriteThread(PVOID pvParam);
 
int main(void)
{
    HANDLE read_thread, write_thread, overlapped_event;
 
    overlapped_event = CreateEvent(NULL, FALSE, TRUE, TEXT("Overlapped_event"));
    read_end = CreateEvent(NULL, FALSE, FALSE, NULL);
    write_end = CreateEvent(NULL, FALSE, FALSE, NULL);
    exit_event = CreateEvent(NULL, TRUE, FALSE, NULL);
 
    MyLibrary = LoadLibrary((LPCWSTR)"MyLibrary.dll");
 
    info.NumberOfBytes = sizeof(info.buffer);
    info.destination_file_pos = 0;
    info.Overlapped.Offset = 0;
    info.Overlapped.OffsetHigh = 0;
    info.Overlapped.hEvent = overlapped_event;
 
    char Path[50];
    cout << "Please, enter path to source folder!" << endl;
    cin >> Path;
 
    cout << Path <<endl;
 
    read_thread = CreateThread(NULL, 0, ReadThread, (PVOID)Path, 0, NULL);
    
    cout << "Please, enter path to destination file!" << endl;
    cin >> Path;
 
    cout << Path <<endl;
    write_thread = CreateThread(NULL, 0, WriteThread, (PVOID)Path, 0, NULL);
 
    WaitForSingleObject(ReadThread, INFINITE);
    WaitForSingleObject(WriteThread, INFINITE);
 
    CloseHandle(ReadThread);
    CloseHandle(WriteThread);
    CloseHandle(read_end);
    CloseHandle(write_end);
    CloseHandle(exit_event);
    CloseHandle(overlapped_event);
 
    FreeLibrary(MyLibrary);
 
    return 1;
}

DWORD WINAPI ReadThread(PVOID pvParam);
DWORD WINAPI WriteThread(PVOID pvParam);