微软的Vista的credential provider的CredUI示例。此示例演示在Vista登陆时的LogonUI替换和验证用户时CredUI替换。初学开发Vista登陆界面替换的可以参考，代码清晰规范。-the credential provider of CredUI example. This example demonstrated in Vista LogonUI landing at the replacement and verify users CredUI replace

修改Windows XP 登陆UI的小工具。-Modify Windows XP landing UI gadget.