About the permission issue of IIS php calling com component_PHP tutorial

1. Run Dcomcnfg.exe
2. Component Services - Computer - My Computer - DCOM Configuration - Find the microsoft word document
3. Click Properties
4. Select "Security"
5. Select "Use custom access permissions" and "Use custom startup permissions"
6. Edit the permissions respectively and add Everyone (ASPNET, VS Developers, Debugger User) (Note: In fact, the accurate one should be "ISUR _Machine name" is the correct user)
7. Select "Identity" and select "Interactive User"
8. Add section)

I did the above things but it still couldn’t run. Then I made the following settings in IIS: Right-click Local under IIS Computer/Application Pool, select Properties, click Identity, and change the predefined account to the local system. It's ready to run.