The Secure Socket Tunneling Protocol service could not secure the default URL. This can prevent the servicing of the SSTP ...

The Secure Socket Tunneling Protocol service could not secure the default URL. This can prevent the servicing of the SSTP modules. Use 'netsh.exe http add urlacl' command to secure the ACL manually. The detailed error message is given at the end of this message. 

URL: %1

%2