清理IE缓存，各种记录等，清理比较干净，注释比较好，做IE小工具可以参考-Clean IE cache, all kinds of records, etc. to clean up relatively clean, notes better, so the gadget can refer to IE

arcGIS导入GPX文件的开发插件，非常实用的小工具。-developing plug-ins arcGIS import GPX files, very useful gadget.