iis php mysql About the permission issue of IIS php calling com component

1. Run Dcomcnfg.exe
2. Component Services - Computer - My Computer - DCOM Configuration - Find the Microsoft Word document
３. Click on Properties
４. Select "Security"
５. Select "Use Auto Define access permissions" and "Use custom startup permissions"
６. Edit the permissions respectively and add Everyone (ASPNET, VS Developers, Debugger User) (Note: In fact, the correct user should be "ISUR_machine name")
7. Select "Identity" and then select "Interactive User"
８. Add <identity impers/> to Web.config (just insert this sentence in the <system.web> section)
　I did the above things but it still didn’t work. Then I made the following settings in IIS: Right-click on the local computer/application pool under IIS, select Properties, click on the logo, and change the predefined account to the local system. It's ready to run.

The above introduces the permission issues of iis php mysql about IIS php calling COM components, including the content of iis php mysql. I hope it will be helpful to friends who are interested in PHP tutorials.