Retrieving the COM class factory for component with CLSID {000209FF-XXX} failed due to the following error: 80070005 Access is denied.

Word/Excel 转换 PDF 时提示：

Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80070005 Access is denied.

解决方案：

1,运行dcomcnfg打开组件服务

2,依次展开"组件服务"->"计算机"->"我的电脑"->"DCOM配置"

3,找到"Microsoft Word 93-2007"/"Microsoft Excel 93-2007"

4,右键打开属性对话框->点击"安全"选项卡

5,把"启动和激活权限"/"访问权限"/"配置权限"都选择为自定义，然后依次点击它们的编辑,赋予相应用户及权限...