ArcGIS Engine（AE、ArcEngine）9.3 SDK For .NET，下载地址：ftp://www.3snews.net/UpLoad/arcgis%209.3+EngineSDKNET.rar
ArcGIS Engine（AE、ArcEngine）9.3 Runtime For Windows，下载地址：ftp://www.3snews.net/UpLoad/ae9.3%20runtime%20+Windows.rar
ArcSDE 9.3 For Windows，下载地址：ftp://www.3snews.net/UpLoad/ArcSDE9.3%7Bwindows%7D.iso
ArcGIS 9.3 Desktop 下载地址：ftp://arcgis.lzu.edu.cn/ArcGIS%209.3/ArcGIS%20Desktop%209.3.iso
附：ArcGIS Engine、ArcGIS Server、ArcSDE的许可文件ECP，点击下载。