Problems with ISS connectivity

Aspnet_regiis-i
Whether the correlation is open in the Web service extension

The problem is as follows. My site does not support ASP, I have done the following online article, but still not
Step, enabling ASP, Access: Control Panel-> management Tools->iis (Internet Server)-Web service Extensions-> Active Server Pages-> allow
Control Panel-> Management Tools->iis (Internet Server)-Web service extensions-> include files at the server-> allow

Run. NET program also to enable asp.netv2.0
The second step is to enable the parent path support.
iis-Web Site-Home Directory-configuration-options-Enable parent path

Third step, permission assignment
iis-Web site-(specific site)-(right) permissions-users Full Control

The result is still
HTTP Error 404-file or directory not found.
Internet Information Services (IIS) I am sure that the file exists.
HTM file access is normal.
Is the ASP is not normal!!
What's the matter??
HTTP Error 404-resolution not found for file or directory:

1> Web Site-Properties-documents-Add-index.asp
Move up to top row
2> Permissions to Everyone
3> often see such a situation. I have met last time. The workaround is to allow active Servers pages in the Web service extension to be allowed. Sometimes the. NET feature is turned on and is not open. But if it's not, it's going to be open.
4>iis-Web Site-Home Directory-configuration-map-add here. asp
Executable file is C:/windows/system32/inetsrv/asp.dll

After you have determined, restart IIS, successful.