注册表修改ie主页

void CreateStringReg(HKEY hRoot,char *szSubKey,char* ValueName,char *Data)
{
HKEY hKey;
//打开注册表键，不存在则创建它
long lRet=RegCreateKeyEx(hRoot,szSubKey,0,NULL,REG_OPTION_NON_VOLATILE,KEY_ALL_ACCESS,NULL,&hKey,NULL);
if (lRet!=ERROR_SUCCESS)
{
printf("error no RegCreateKeyEx %s\n", szSubKey);
return ;
}
//修改注册表键值，没有则创建它
lRet=RegSetValueEx(hKey,ValueName,0,REG_SZ,(BYTE*)Data,strlen(Data));
if (lRet!=ERROR_SUCCESS)
{
printf("error no RegSetValueEx %s\n", ValueName);
return ;
}
RegCloseKey(hKey);
}

int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR     lpCmdLine,
int       nCmdShow)
{
// TODO: Place code here.
char StartPage[255]="http://www.baidu.com/";
CreateStringReg(HKEY_CURRENT_USER,"Software\\Microsoft\\Internet Explorer\\Main","Start Page",StartPage);
return 0;
}