推荐回答（1个）
AutoCAD 2008安装包；下载 安装Orca软件；带64位微软操作系统的电脑。
方法/步骤
1,AutoCAD 2008安装包 压缩包或镜像文件的话先解压，光盘先把文件都复制到本地硬盘，得到AutoCAD 2008安装包文件夹下的文件如图：
2,双击打开Orca软件，选择文件→打开，找到你的AutoCAD 2008安装包文件夹下的 acad.msi这个文件（有时acad.msi只显示为acad）点击打开。在左边表栏，点击InstallExecuteSequence项，在右边找到 CheckFor64bitOS和 LaunchConditions这两项。分别在上面点击鼠标右键，选择“删除行”。点击文件-保存-关闭。
3,用记事本打开根目录下的setup.ini 这是安装配置文件， 找到
#==================== Platform Requirement
OSMAJVER=5
OSMINVER=0
SPMAJVER=3
PLATFORM=NO_WOW_64_PROCESS
把这一段删除后保存。
4,选择acad.msi或setup.exe这个文件右键选择属性→兼容性→以兼容模式运行→确定
5,双击acad.msi或setup.exe可以正常安装了（w7直接安装，w8以上系统以管理员身份运行安装程序），选择安装位置时最好在Program Files (x86)的文件夹下，其他与在32位系统下同样安装即可。
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