zumiPage is the most advanced Page class ever created for asp.net! It can be utilized by any website to reach maximum performance within seconds, including speed-boost, communication economy and enhanced user experience. It is a replacement of the standard Page class which asp.net pages are based on and adds the ability of zero-length ViewState and invisible postbacks.
website: http://zumipage.com/
一个不错的控件，好像提供了不少的优化功能，具体可以看看上面的网站。如果是试用版，会出现一个提示框，注册码就写在web.config中的zumikey属性就可以了，大致看了一下，原理好像很简单喔，不过作者还特意在校验license的地方加了一个一句话：
Note: Reverse engineering of this software is a violation of the law
好像大致算法就是[buffer1]=[buffer2][buffer3][buffer2长度]，[buffer3]=hash([buffer2])
其中[buffer2]就是明文了，[buffer1]转换为base64string就是注册码了，比较简单，其实本来没必要搞那么复杂，有心的还是会到paypal上面去购买的，好像paypal现在有中文网站了，还可以免费注册，有兴趣的可以看看。
