用Javascr ipt重写了所有代码，提高了一些效率，功能方面，增加了对Jscr ipt和VBscr ipt引擎的检测，客户端增加了对MSN版本的检测以及.NET版本的检测，修改了操作系统以及浏览器版本的检测，使其更加精确，代码方面，将检测组件是否安装以及检测组件版本号的函数合二为一，使产生的异常少了一些-Use Javascr ipt to rewrite all the code to improve some efficiency, functionality, increased detection of Jscr ipt and VBscr ipt engines, increasing the detection of the client version of MSN testing and .NET version, modified the operating system and browser version testing, to make it more accurate, the code aspect, the detection function detects whether the component is installed and the version number of the components into one, so that some produce fewer exceptions