The IIS Admin Service service is stopped due to a 2149647636 (0 × 80210514) service error.

Microsoft website error handling comments:
Http://support.microsoft.com/kb/903072
The server {A9E69610-B80D-11D0-B9B9-00A0C922E750} was not registered with DCOM for a limited period of time.
The IIS Admin Service service is stopped due to a 2149647636 (0x80210514) service error.
The IIS Admin Service, which is dependent on the http ssl Service, cannot be started due to the following errors:
The specified service error has been returned. Code.
The IIS Admin Service service that is dependent on the World Wide Web Publishing Service cannot be started due to the following errors:
The Service has returned a specific service error code.
The IIS Admin Service service is stopped due to a 2149647636 (0x80210514) service error.

Solution
Run regsvr32 msxml3.dll and press Enter.
This can be solved in general.

I encountered this error today, but the problem could not be solved according to the above method. After studying it for a long time, I finally found that it was connected to c: \ windows \ system32 \ inetsrv \ metabase. the XML file may be related to the damage to the IIS metabase caused by the installation of a third-party ISAPI that has not been deleted. After the original normal backup is restored, everything is normal, it can be seen that metabases in IIS still need to be backed up frequently. If there is no backup, you can only reinstall IIS!