HGE是一个完全免费的，并且开源的引擎，所以我们可以随便使用在自己的商业或非商业项目，在此，我们也向 HGE的编写者致敬。-HGE is a completely free and open-source engine, so we can easily use in commercial and non-commercial projects, we also pay tribute to the HGE writers.

Windows系统下的免费开源的文件比较/合并工具，使用它可以非常方便地比较多个文档内容甚至是文件夹与文件夹之间的文件差异。-Free open source file system under Windows diff/merge tool with which you can very easily compare the contents of multiple documents and even file folders and folders difference between.