IIS7.5 Error Code Code 0x8007007e HTTP error 500.19 solution

Today, after deploying the WCF service in win2008+ IIS7.5 environment, 1 immediately appears a page that cannot be opened. The specific error message is as follows:

HTTP error 500.19 - Internal Server Error

The requested page could not be accessed because the associated configuration data for that page is invalid.
Detailed error information
Module DynamicCompressionModule
Inform SendResponse
Handler StaticFile
Error code 0x8007007e
Requested URL ***
Physical path C:/ ECG2.0 /eWECGService
Login method anonymous
Login user anonymous
The most likely reason:
The worker process could not read the applicationhost.config or web.config files.
XML in the applicationhost.config or web.config files.
The server was unable to access the applicationhost.config or web.config files due to incorrect NTFS permissions.
Possible operations:
Query the event log for information about why the configuration file is not readable.
Ensure that the user id or authenticated user specified for the application pool has the necessary permissions to access the web.config file.
I searched the Internet for a long time and found nothing wrong with the match. Finally, I found it on an English website.

Solutions:

#Remove/Disable XPress compression scheme configuration using the command below:

%windir%/system32/inetsrv/appcmd.exe set config -section:system.webServer/httpCompression /-[name='xpress']

As address: http: / / blogs msdn. com/b/webtopics/archive / 2010/03/08 / troubleshooting - http - 500-19 - errors - in - iis - 7. aspx