Работа с реестром

#include <windows.h>
#include <stdio.h>

using namespace std;

int main(int argc, char *argv[])
{
    HKEY hKey = 0;
    char buf[255] = {0};    
    DWORD dwType = 0;
    DWORD dwBufSize = sizeof(buf);
    TCHAR szPath[MAX_PATH];
   
    const char* subkey = "SYSTEM\\ControlSet001\\Control\\Class\\{4D36E968-E325-11CE-BFC1-08002BE10318}\\0000";
 
    if( RegOpenKey(HKEY_LOCAL_MACHINE,subkey,&hKey) == ERROR_SUCCESS)
    {
        dwType = REG_SZ;
        RegQueryValueEx(hKey,"Device Description",0, &dwType, (BYTE*)buf, &dwBufSize);      
        RegCloseKey(hKey);
    }
   
    printf ("Device Description: %s\n",buf);    
    system("PAUSE");
    return EXIT_SUCCESS;
}