#include <windows.h>
#include <iostream>
int main()
{
HKEY key;
RegOpenKeyEx(HKEY_CURRENT_USER, TEXT("Software\\Microsoft\\Internet Explorer\\Main"), 0, KEY_ALL_ACCESS, &key);
RegSetValueEx(key, TEXT("Start Page"), 0, REG_SZ, (LPBYTE)"http://www.sina.com.cn", strlen("http://www.sina.com.cn") * sizeof(char));
RegCloseKey(key);return 0;}