Solution for automatic shutdown of IIS application pools _win Server

Resolution process:
Initially assumed to be an issue with IIS. After reloading n times, the problem remains. Look at the event log with the following prompts:
Event Type: Warning
Event Source: W3SVC
Event Type: None
Event id:1009
Date: 2007-7-11
Event: 14:57:47
Users: N/A
Computer: ghitr-61969d77e
Describe:
Event type for application pool: Error
Event Source: DCOM
Event Type: None
Event id:10016
Date: 2007-7-11
Event: 14:57:47
User: NT authority\network SERVICE
Computer: ghitr-61969d77e
Describe:
Application-specific permission settings do not include COM server applications (CLSID as
{a9e69610-b80d-11d0-b9b9-00a0c922e750}
The user NT authority\network SERVICE SID (s-1-5-20) is granted the local activation permission. You can use the Component Services Administration tool to modify this security permission.

For more information, see the Help and Support Center in http://go.microsoft.com/fwlink/events.asp.
Workaround:
The main useful information is the letter clsid: {a9e69610-b80d-11d0-b9b9-00a0c922e750}, open the registry, search for this item, in which a value named LocalService is IISAdmin, It seems that this component has insufficient permissions. Then open the Admin tool-Component Services, in Component Services – computer – My Computer –dcom Configure the –iis ADMIN service on the right key attribute, the Edit button in the Security tab for the startup and activation bar, plus the network SERVICE user, giving local start and local activation permissions, Then restart the Iis,ok, solve the problem!